Monday, July 27, 2026

Antonyms UPCAT Reviewer: Lesson and Practice

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Antonyms

Identify the precise opposite the sentence requires—not merely a negative or loosely contrasting word.

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English Antonyms

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An antonym reverses the relevant meaning, not every feature of a word

Antonyms are words with opposite meanings, but the correct opposite depends on how the target word is used. For example, the opposite of light may be heavy when discussing weight or dark when discussing brightness. First identify the exact meaning in the sentence, then reverse that meaning while preserving the word’s grammatical role and level of intensity.

Find the active meaning

A word with several meanings can have several antonyms. Let the sentence determine which meaning is active.

Direct opposite beats loose contrast

Illegal is the direct opposite of legal; unpopular and unfair are separate judgments.

DO IT FAST

Define it, reverse it, then test the replacement

Sentence: “The instructions gave explicit criteria for evaluating each project.”

Choices: implicit • lengthy • optional • technical

1. Define: Explicit means directly and clearly stated.

2. Reverse: The opposite would be suggested without being directly stated.

3. Test: “The instructions gave implicit criteria…” The grammatical role and contrast are preserved.

Answer: implicit.

Why it works

Reversing a short definition is more reliable than searching for a choice that merely feels negative or different.

WORKED EXAMPLES

Five forms you should recognize

1. Exact opposite

Scarce ↔ abundant. One means insufficient; the other means plentiful.

2. Context changes the pair

Light ↔ heavy for weight, but light ↔ dark for brightness.

3. Degree

Negligible ↔ substantial. The contrast is too small to matter versus considerable.

4. Attitude

Skeptical ↔ convinced. Doubt is reversed by persuasion, not merely by hope.

5. Action

Mitigate ↔ aggravate. One lessens harm; the other makes it worse.

COMMON TRAPS

Check before you commit

  • Choosing any word with a negative prefix
  • Reversing the topic instead of the meaning
  • Ignoring the target word’s context
  • Using a weaker or stronger contrast than required
  • Changing the grammatical role
  • Confusing an opposite with a cause, result, or judgment
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Antonyms FAQ

Is adding un- always enough to form an antonym?

No. Some valid opposites use a prefix, but others require a different word, and not every prefixed form is standard or contextually correct.

Can a word have more than one antonym?

Yes. Words with multiple meanings or degrees can have different opposites in different contexts.

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