SEC English Examination Preparation | Vocabulary Words For Distinctions Vol 0038 | Risk and Uncertainty: Risk, Hazard, Likelihood, Exposure and What We Know Before an Outcome Happens

Risk vocabulary helps SEC English students describe what may happen without pretending that possibility is certainty. These 100 words move from basic risk and probability into safeguards, contingency, resilience and decision-making. They are an eduKate teaching selection, not an official SEAB prescribed list.

1. Risk
2. Hazard
3. Likelihood
4. Exposure
5. Uncertainty
6. Probability
7. Vulnerability
8. Severity
9. Precaution
10. Attenuate
11. Contingency
12. Residual
13. Threat
14. Danger
15. Peril
16. Chance
17. Possibility
18. Prospect
19. Potential
20. Unpredictable
21. Uncertain
22. Risk appetite
23. Possible
24. Adverse
25. Improbable
26. Remote
27. Imminent
28. Foreseeable
29. Unforeseen
30. Volatile
31. Variable
32. Instability
33. Estimate
34. Forecast
35. Projection
36. Scenario
37. Premise
38. Unknown
39. Ambiguity
40. Confidence
41. Confidence interval
42. Margin
43. Tolerance
44. Threshold
45. Activation point
46. Warning
47. Alert
48. Indicator
49. Signal
50. Red flag
51. Safeguard
52. Protection
53. Buffer
54. Reserve
55. Backup
56. Fallback
57. Redundancy
58. Resilience
59. Robustness
60. Preparedness
61. Readiness
62. Prevention
63. Avoidance
64. Reduction
65. Transfer
66. Acceptance
67. Control
68. Constraint
69. Exposure limit
70. Risk-benefit balance
71. Downside
72. Impact
73. Loss
74. Damage
75. Disruption
76. Failure
77. Breakdown
78. Incident
79. Emergency
80. Crisis
81. Worst-case
82. Best-case
83. Expected
84. Variance
85. Sensitivity
86. Dependency
87. Single point of failure
88. Event-dependent
89. Adaptive
90. Flexible
91. Responsive
92. Monitoring
93. Review
94. Reassess
95. Escalate
96. De-escalate
97. Preventive
98. Corrective
99. Detective
100. Risk-calibrated

Top 100 Risk and Uncertainty Vocabulary | Meaning and Singapore Context

Word	Meaning	Example (Singapore Context)
1. Risk	the possibility of an unwanted outcome, considered with its consequences	The committee assessed the risk of overcrowding before confirming the venue.
2. Hazard	a source or situation with the potential to cause harm	Loose cables were a trip hazard near the display.
3. Likelihood	how probable an event or outcome is	The forecast increased the likelihood of rain during the outdoor session.
4. Exposure	the degree to which someone or something comes into contact with a hazard	Moving the queue indoors reduced exposure to the afternoon heat.
5. Uncertainty	lack of complete knowledge about an outcome or explanation	Uncertainty about attendance made final seating numbers difficult to predict.
6. Probability	a measure or judgement of how likely something is	The team discussed the probability of late arrivals.
7. Vulnerability	susceptibility to harm or adverse effects	The backup plan reduced the event’s vulnerability to bad weather.
8. Severity	the seriousness of a possible or actual consequence	The teacher considered both the likelihood and severity of each risk.
9. Precaution	an action taken in advance to reduce risk	Placing a mat near the wet entrance was a sensible precaution.
10. Attenuate	reduce the strength or severity of an effect.	Extra shelter could attenuate the impact of heavy rain on the queue.
11. Contingency	a possible future event or a plan for dealing with one	The organisers prepared a contingency for heavy rain.
12. Residual	remaining after attempts have been made to reduce something	Some residual risk remained even after the walkway was cleared.
13. Threat	something capable of causing harm or loss	The approaching storm was a threat to the outdoor equipment.
14. Danger	the possibility of injury, damage or another serious adverse outcome	The damaged socket created an immediate danger.
15. Peril	serious and often imminent danger	The hikers recognised the peril of continuing during the storm.
16. Chance	the possibility that something may happen	There was a chance that the delivery would arrive late.
17. Possibility	something that may happen or be true	A venue change remained a possibility.
18. Prospect	the possibility or expectation of a future event	The prospect of rain led the team to inspect the indoor hall.
19. Potential	capacity to develop into a future result or problem	The narrow doorway had the potential to create a bottleneck.
20. Unpredictable	not able to be forecast reliably	Attendance was unpredictable because registration remained open.
21. Uncertain	not known, fixed or decided with confidence	The final number of visitors was still uncertain.
22. Risk appetite	the level and type of risk an organisation or person is willing to accept.	The committee had little risk appetite for electrical hazards.
23. Possible	capable of happening or being true	It was possible that some students would arrive after CCA.
24. Adverse	harmful or unfavourable in effect.	The plan included a response to adverse weather.
25. Improbable	unlikely to happen or be true	A complete power failure was considered improbable but not impossible.
26. Remote	very unlikely in the stated context	The risk of flooding was remote on the upper floor.
27. Imminent	likely to happen very soon	Dark clouds suggested that heavy rain was imminent.
28. Foreseeable	reasonably capable of being anticipated	Crowding at the single entrance was a foreseeable problem.
29. Unforeseen	not anticipated beforehand	An unforeseen delivery blocked the loading area.
30. Volatile	liable to change rapidly and unpredictably	The volatile weather made outdoor planning difficult.
31. Variable	capable of changing in amount, condition or value	Travel time was variable during the evening peak.
32. Instability	a condition in which change is difficult to predict or control.	Transport instability made arrival times harder to estimate.
33. Estimate	an approximate calculation or judgement based on available information	The organiser made an estimate of expected attendance.
34. Forecast	a reasoned statement about a future condition or event	The weather forecast prompted an earlier setup.
35. Projection	an estimate of a future value based on assumptions or trends	The budget projection included a small emergency reserve.
36. Scenario	a possible sequence of events considered for planning	The class discussed a worst-case scenario before the trip.
37. Premise	a starting proposition used in reasoning or planning.	The attendance estimate rested on the premise that most registrants would arrive.
38. Unknown	a factor or value that is not yet known	Walk-in attendance remained an important unknown.
39. Ambiguity	uncertainty caused by more than one reasonable interpretation	Ambiguity in the notice created uncertainty about the reporting time.
40. Confidence	the degree of trust placed in a judgement or estimate	The small sample limited confidence in the forecast.
41. Confidence interval	a statistical range used to express uncertainty around an estimate	In a data lesson, the class learnt that a confidence interval describes uncertainty around an estimate.
42. Margin	an amount allowed for uncertainty, error or safety	The schedule included a ten-minute margin for delays.
43. Tolerance	the acceptable amount of variation or error	The project allowed little tolerance for late delivery.
44. Threshold	a level at which a response, condition or decision changes	The school set an attendance threshold for opening a second room.
45. Activation point	the specified point at which a planned response begins.	A lightning alert was the activation point for moving indoors.
46. Warning	information signalling possible danger or difficulty	The weather warning led organisers to secure loose equipment.
47. Alert	a notice that draws attention to a possible threat or urgent condition	Staff received an alert about a train delay.
48. Indicator	a sign or measure that points towards a condition	Repeated late arrivals were an indicator that the reporting time needed review.
49. Signal	information or an event suggesting that attention or action may be needed	Darkening skies were a signal to move equipment under shelter.
50. Red flag	a warning sign suggesting possible trouble or the need for closer checking	Missing permission forms were a red flag before publication.
51. Safeguard	a measure designed to protect against harm or error	A second checker acted as a safeguard against incorrect labels.
52. Protection	action or a measure that reduces exposure to harm	The cover provided protection from rain.
53. Buffer	extra capacity, time or resources kept to absorb disruption	The timetable included a buffer between activities.
54. Reserve	resources kept available for later or unexpected need	The club kept a small reserve of printed copies.
55. Backup	an alternative resource or plan available if the first fails	The teacher saved a backup copy of the presentation.
56. Fallback	a less preferred option used if the main plan cannot proceed	The classroom was the fallback venue for wet weather.
57. Redundancy	extra capacity or duplication that allows a system to continue after a failure	Two microphones provided redundancy during the presentation.
58. Resilience	the capacity to continue, recover or adapt after disruption	Flexible staffing improved the event’s resilience.
59. Robustness	the ability to remain effective under changing or difficult conditions	The simple registration process improved robustness during peak arrival.
60. Preparedness	readiness to respond to a possible event	A rehearsal improved the team’s preparedness for an evacuation.
61. Readiness	the state of being prepared to act	Staff checked their readiness before visitors arrived.
62. Prevention	action intended to stop an unwanted event from occurring	Cable covers were used for accident prevention.
63. Avoidance	action that removes or stays away from a risk	Moving the activity indoors was a form of weather-risk avoidance.
64. Reduction	a decrease in amount, likelihood or severity	Staggered arrival times aimed at risk reduction.
65. Transfer	shifting responsibility or financial consequences of a risk to another party	Insurance can transfer some financial risk, though it does not remove the hazard.
66. Acceptance	a decision to tolerate a risk rather than reduce or avoid it	The team chose risk acceptance for a minor inconvenience.
67. Control	a measure used to manage a hazard or risk	Limiting room capacity was a crowd-control measure.
68. Constraint	a limit that affects available choices	The small budget was a planning constraint.
69. Exposure limit	a stated boundary on acceptable contact with a hazard or risk.	The activity followed the stated exposure limit for the laboratory material.
70. Risk-benefit balance	the relationship between accepted risk and expected benefit.	The organisers considered the risk-benefit balance before approving the outdoor activity.
71. Downside	a possible negative effect or disadvantage.	A downside of the backup venue was its smaller capacity.
72. Impact	the effect or influence of an event or decision	The team considered the impact of cancellation on families.
73. Loss	something valuable that is no longer available because of an adverse event	The damaged materials represented a financial loss.
74. Damage	physical, financial or other harm caused to something	Water damage affected several posters.
75. Disruption	an interruption to normal activity or plans	A transport disruption delayed several participants.
76. Failure	a situation in which a system, plan or component does not perform as required	The team planned for possible equipment failure.
77. Breakdown	a failure of a system, process or relationship to function normally	A communication breakdown led to duplicate bookings.
78. Incident	an event, especially one requiring attention or review	The minor incident was recorded for later review.
79. Emergency	a serious unexpected situation requiring immediate action	Staff knew the emergency contact procedure.
80. Crisis	a period of serious difficulty requiring important decisions	The power outage became a crisis when backup lighting also failed.
81. Worst-case	describing the most adverse reasonably considered scenario	The organisers discussed a worst-case weather scenario.
82. Best-case	describing the most favourable reasonably considered scenario	The best-case attendance estimate assumed every registrant arrived.
83. Expected	judged most likely or reasonably anticipated	The expected attendance was lower than the room capacity.
84. Variance	the amount of difference or spread around an expected value	Large attendance variance made resource planning harder.
85. Sensitivity	the degree to which an outcome changes when an assumption or input changes	The budget was sensitive to transport costs.
86. Dependency	a condition in which one part relies on another	The event’s dependency on one projector created a single point of failure.
87. Single point of failure	one component whose failure can stop an entire process	Using only one key holder created a single point of failure.
88. Event-dependent	determined by whether another event occurs.	The outdoor programme was event-dependent because a lightning alert would move it indoors.
89. Adaptive	able to change in response to new conditions	An adaptive plan allowed the group to shorten activities when buses arrived late.
90. Flexible	able to change without losing the main purpose	A flexible schedule made small delays easier to absorb.
91. Responsive	able to react appropriately to changing information or needs	The team used a responsive plan rather than ignoring updated forecasts.
92. Monitoring	regular observation used to detect change or emerging problems	Weather monitoring continued throughout the event.
93. Review	a deliberate re-examination of information, performance or risk	The teacher scheduled a safety review after the first session.
94. Reassess	evaluate again because conditions or information have changed	The team would reassess the venue if the forecast worsened.
95. Escalate	increase in seriousness or pass an issue to a higher level of attention	Staff would escalate a serious safety concern to the teacher in charge.
96. De-escalate	reduce the intensity or seriousness of a situation	Clear instructions helped de-escalate confusion at the entrance.
97. Preventive	intended to stop a problem before it occurs	The extra check was preventive rather than a response to an actual failure.
98. Corrective	intended to repair a problem after it has been identified	Replacing the damaged cable was a corrective action.
99. Detective	intended to discover a problem or failure	A checklist acted as a detective control for missing items.
100. Risk-calibrated	matched in strength to the level of risk being addressed.	The response was risk-calibrated rather than unnecessarily disruptive.

How to Use the 100 Words

Do not try to force all 100 words into writing. Start with five. Learn the meaning, the natural phrase around the word, the strength of the claim it makes, and one situation where a nearby word would be more accurate.

Risk vocabulary describes possible harm before the outcome is known. Volume 0038 separates hazard, likelihood, exposure and uncertainty so students can discuss danger without treating possibility as certainty.

Vocabulary Words for Distinctions Vol 0038

Risk — the possibility of an unwanted outcome, often considered together with its consequences.
Hazard — a source or situation with the potential to cause harm.
Likelihood — how probable an event or outcome is.
Exposure — the degree to which someone or something comes into contact with a hazard or risk.
Uncertainty — lack of complete knowledge about an outcome, value or explanation.
Probability — a measure or judgement of how likely something is.
Vulnerability — susceptibility to harm or adverse effects.
Severity — the seriousness of a possible or actual consequence.
Precaution — an action taken in advance to reduce risk.
Mitigate — reduce the likelihood or severity of harm.
Contingency — a possible future event or a plan for dealing with one.
Residual — remaining after attempts have been made to reduce something.

Why this distinction matters

Good evaluation depends on time, uncertainty, fairness and reversibility. A possible harm is not a certain outcome; equal treatment is not always identical treatment; an immediate effect is not automatically lasting; and some decisions are much easier to undo than others.

SEC English transfer

Use these distinctions across writing, comprehension, summary, listening and oral communication. Follow the official SEAB syllabus pages for the student’s subject level and examination year. This is an eduKate teaching resource, not an official prescribed vocabulary list.

Error repair

Collapsed distinction: “There is a risk of rain, so the outdoor event will be cancelled.”

Repaired: “Rain is a possible risk to the outdoor event; cancellation depends on the forecast, severity and contingency arrangements.”

The repair makes the criterion visible instead of hiding it inside a broad positive or negative judgement.

Writing practice

Evaluate one decision using two time horizons or two fairness/risk criteria. State what can be known now and what would require later evidence. Avoid calling an option simply good or bad when the trade-off can be named more precisely.

Comprehension practice

Find one claim about risk, fairness, future effects or a decision. Identify the condition or criterion on which the claim depends. Then explain one stronger conclusion the passage does not justify.

Oral practice

Give a recommendation and name one risk, one benefit and whether the decision is easy to reverse. Then answer a follow-up that changes the time horizon or affected group.

Mastery loop

Choose five words.
Explain the criterion each one names.
Use it in context.
Create one overstatement.
Repair it.
Retrieve the distinction later.

Where this fits in eduKate

Use the Master SEC English Vocabulary Guide for the complete system and the SEC English Vocabulary Hub for the word-list estate. Continue to the related eduKate guide for deeper instruction.

The standard

Distinction vocabulary should make a decision easier to reason about, not merely make the judgement sound more sophisticated.