The one-sentence truth: A strong GP writer does not merely know what to say; the writer knows how strongly the evidence allows it to be said.
General Paper arguments often fail because the sentence is stronger than the evidence. A student reads one study and writes “This proves that…” A trend appears in several countries and becomes “This always happens…” A plausible mechanism becomes “This will inevitably lead to…” The problem is not lack of intelligence. It is a mismatch between evidence and certainty.
JC2 vocabulary needs a certainty scale. The student should be able to move deliberately from possibility to probability, from tentative inference to robust conclusion, and from incomplete evidence to justified confidence. These differences matter in Paper 1 argumentation and in Paper 2, where a single overstated paraphrase can distort the writer’s meaning.
Certainty is a scale, not an on-off switch
| Level | Useful vocabulary | Typical meaning |
|---|---|---|
| Open possibility | may, might, could, potentially | The outcome is possible but not established. |
| Plausibility | plausibly, reasonably, conceivably | There is a defensible basis for the possibility. |
| Probability | likely, probable, more likely than not | The evidence favours the outcome. |
| Strong indication | strongly suggests, is consistent with, points towards | Evidence is persuasive but not necessarily conclusive. |
| High confidence | robustly supported, well established, compelling | Multiple lines of evidence support the claim. |
| Near certainty | almost certainly, overwhelmingly likely | Alternative outcomes are possible but unlikely. |
| Certainty | demonstrates, establishes | Use only where the evidence genuinely warrants it. |
1. Possibility: may, might, could
These words are useful when an outcome is possible but not guaranteed. “Automation may displace some routine jobs” is a different claim from “Automation will displace routine jobs.” The first leaves room for adaptation, job redesign, policy intervention and new demand. The second predicts an outcome with much greater certainty.
The danger is lazy possibility language. If every paragraph says something “may” happen, the essay can become evasive. Possibility needs a reason. Explain the mechanism that makes the outcome plausible.
2. Plausible does not mean proven
Plausible is one of the most useful words in analytical writing. It means that a claim is reasonable given what is known. It does not mean that the claim has been established. A plausible explanation is one that could account for the evidence without contradiction.
For example, it may be plausible that social media contributes to political polarisation because recommendation systems can reward emotionally engaging content. That does not prove that social media is the principal cause of polarisation. Other forces may matter more.
3. Likely and probable
When evidence favours an outcome, likely and probable are stronger than possible. Use them when there is a clear evidential basis. “An ageing population is likely to increase demand for healthcare services” is stronger than “may increase”, but still leaves room for productivity changes, preventive care, technological improvements and policy responses.
Good writing often pairs probability with conditions: “The policy is likely to reduce peak-hour traffic if the price signal is large enough to alter travel behaviour.” This tells the reader both what you expect and why.
4. “Suggests” is different from “proves”
Students frequently overstate evidence. If an example suggests a relationship, it provides support but does not settle the matter. If evidence is consistent with an explanation, the explanation fits the evidence but alternatives may also fit. If evidence demonstrates something, the standard is much higher.
This is especially important when discussing surveys, correlations, case studies and current affairs. A single country can illustrate a possibility. It rarely proves a universal rule.
5. Robust, compelling and well established
These words indicate stronger evidential support. Robust suggests that a finding or argument remains strong across reasonable tests, assumptions or contexts. Compelling suggests that the evidence or reasoning strongly persuades. Well established suggests a substantial body of consistent support over time.
Do not use them to flatter your own argument. Earn them. Tell the reader why the evidence is robust: multiple sources, repeated findings, strong mechanism, broad applicability, or resistance to counterexamples.
6. Tenuous, speculative and inconclusive
GP also needs vocabulary for weak evidence. A tenuous connection is weak or insufficiently supported. A speculative claim goes beyond what current evidence can securely establish. Inconclusive evidence does not support a firm conclusion.
These words are more analytical than simply writing “the evidence is bad”. They tell the reader what kind of weakness exists.
7. Inevitable: a dangerous word
Inevitable means that no realistic alternative outcome exists. That is an extraordinarily strong claim in politics, economics, technology and society. Human systems contain adaptation, feedback and choice. Before writing that an outcome is inevitable, ask whether institutions, incentives, regulation or behaviour could change the path.
Most of the time, students mean “likely”, “difficult to avoid” or “highly probable”. Use the narrower term.
8. Confidence should follow evidence
Calibrated writing follows a simple rule: the strength of the language should be proportional to the strength of the evidence. Weak evidence should not produce absolute language. Strong evidence should not be buried under endless hedging.
This is why mature writing can sound both confident and careful. It is willing to say “This is likely” when the evidence is strong, and equally willing to say “This remains uncertain” when the evidence is mixed.
A certainty ladder for GP essays
- Possible: This could occur.
- Plausible: There is a reasonable mechanism.
- Likely: The balance of evidence favours it.
- Strongly supported: Multiple sources or mechanisms point the same way.
- Well established: The conclusion has substantial and durable support.
- Certain: Alternative interpretations are effectively ruled out.
Most General Paper claims live somewhere in the middle of this ladder.
From weak certainty control to strong certainty control
Weak: “Artificial intelligence will make people unemployed.”
Better: “Artificial intelligence may displace workers in tasks that can be automated.”
Stronger: “AI is likely to displace some routine cognitive tasks, although the employment effect will depend on how quickly new tasks emerge and whether workers can transition into them.”
The final version does not pretend to predict the whole labour market. It identifies the most defensible level of certainty and the conditions that could alter the outcome.
Certainty in Paper 2
Paper 2 makes certainty control even more visible. If a writer says “This may undermine trust,” you cannot paraphrase it as “This destroys trust.” If a passage says “Evidence strongly suggests,” do not reduce that to “research shows” unless the original strength is preserved.
When answering inference questions, distinguish what is explicit from what is reasonably inferred. A sound inference is supported by the passage even if not directly stated. A speculative inference merely feels possible.
Certainty and current affairs
Current affairs are messy. Early reports can be incomplete. Economic forecasts can change. Technologies evolve. Political outcomes depend on behaviour and institutions. Good GP students therefore avoid turning a recent example into a universal law.
Use examples to illustrate mechanisms and patterns, then explain how much they can reasonably support. One case may be vivid. A pattern across cases is usually stronger. A well-understood mechanism can make a claim more persuasive. None of these automatically produces certainty.
Singapore examples: avoid certainty by familiarity
Students sometimes write more confidently about Singapore simply because it is familiar. Familiarity is not evidence. A statement about Singaporeans, schools, housing, transport or public attitudes still needs scope and support.
Instead of “Singaporeans value stability,” ask what evidence supports the claim, whether it applies across generations and contexts, and whether competing values such as autonomy, affordability or fairness might matter differently to different groups.
The evidence-to-language matching drill
- One anecdote: illustrates, does not establish.
- One case study: demonstrates possibility and context, not universality.
- A consistent multi-country pattern: may support broader generalisation.
- A credible mechanism plus repeated evidence: supports stronger inference.
- Mixed evidence: requires qualification and competing explanations.
- No reliable evidence: remain tentative.
Seven words to handle uncertain arguments well
Plausible. Reasonable but not established. Probable. More likely than alternatives. Indicative. Suggestive of a direction or pattern. Robust. Resistant to reasonable challenge. Tenuous. Weakly supported. Speculative. Extending beyond secure evidence. Inconclusive. Insufficient for a firm judgement.
A seven-day certainty drill
- Day 1: rewrite ten absolute claims using possibility language.
- Day 2: rank five claims from plausible to well established.
- Day 3: match evidence types to appropriate certainty words.
- Day 4: identify overstatement in newspaper commentary.
- Day 5: paraphrase a passage while preserving every degree marker.
- Day 6: write a paragraph containing one strong claim, one tentative claim and one explicitly uncertain point.
- Day 7: review your essay and underline every certainty word. Ask whether each deserves its strength.
JC2 certainty health check
- Can you distinguish possible from probable?
- Can you distinguish plausible from proven?
- Can you tell when evidence is suggestive rather than conclusive?
- Can you use strong language when the evidence truly warrants it?
- Can you preserve certainty when paraphrasing?
- Can you identify when your own conclusion is too absolute?
Continue the JC2 GP vocabulary system
Return to the canonical General Paper Vocabulary Year 2 (JC2): Top 100 Words for A-Level GP 8881 for the complete vocabulary map.
For the broader Junior College framework of conceptual vocabulary, qualification, counterargument, policy language and professional tone, read Vocabulary for Junior College (JC1–JC2): Adult Thinking, Professional Writing.
Final thought
Certainty is part of meaning. A mature writer knows that “could”, “likely”, “strongly suggests” and “establishes” are not stylistic alternatives. They are different intellectual commitments. Learn to choose the right one, and your writing immediately becomes more credible.