SPI English · Vocabulary
Antonyms
An antonym question asks for the option opposite in meaning to a word, and the usual wrong options are words that mean the same.
Why this matters
Fourteen questions in the bank ask for the opposite, one of them from the 2022 paper, and five are MODERATE. In the harder ones three options are synonyms of the word, so the fastest route is to strike those and keep the one that turns the meaning round.
Concept 1 of 3: Strike the synonyms, then match the strength
Definition
The method:
- Say the word's meaning in plain words.
- Strike every option that means the same. These are the commonest wrong answers.
- Strike words of a different kind: the opposite of an action word is an action word, and the opposite of a describing word is a describing word.
- Of what is left, choose the one that reverses the meaning at the same strength. The opposite of 'warm' is 'cool'; the opposite of 'hot' is 'cold'.
Worked example
Practice this conceptself-check · 4 quick reps
The same idea in a practice question:
Example 1 · Vocabulary · Antonyms
Choosing the synonym by mistake
Too strong an opposite
Giving up is not losing
Concept 2 of 3: Everyday words and their opposites
Definition
Two ways an opposite is made:
- A different word: clever and foolish, ancient and modern.
- A prefix that means not: in- (gratitude, ingratitude), un- (happy, unhappy), dis- (honest, dishonest).
- Check a prefix word before you trust it: invaluable means very valuable, not worthless.
| Word | Meaning | Opposite |
|---|---|---|
| misery | great unhappiness | contentment, happiness |
| clever | quick to learn and understand | foolish |
| ancient | very old, from long ago | modern |
| gratitude | thankfulness | ingratitude |
| scarcity | a shortage | plenty, abundance |
| ascend | to go up | descend |
| honest | telling the truth | dishonest |
| visible | able to be seen | invisible |
| permanent | lasting for ever | temporary |
Practice this conceptself-check · 4 quick reps
The same idea in a real exam question:
Example 2 · Vocabulary · Antonyms
A prefix does not always mean not
A word from the same topic is not an opposite
Concept 3 of 3: Harder words and their opposites
Definition
How to use this table:
- Learn the meaning first, then the opposite.
- In the question, find the three options that share a meaning. The odd one out is usually the key.
- Many of these come in families: scrupulously, assiduously and painstakingly all mean with great care.
| Word | Meaning | Opposite |
|---|---|---|
| fallible | able to make mistakes | perfect, infallible |
| vague | not clear or definite | precise |
| conscientiously | carefully, with a sense of duty | carelessly |
| incidental | minor, coming along with the main thing | essential |
| disdainful | looking down on others | respectful, reverential |
| vigilant | watchful and alert | oblivious, unaware |
| ratify | to approve a treaty or law formally | annul, cancel |
| frugal | careful not to waste money | extravagant |
| transparent | clear enough to see through | opaque |
Practice this conceptself-check · 4 quick reps
The same idea in a practice question:
Example 3 · Vocabulary · Antonyms
Three options agree, so the fourth wins
Fallible has nothing to do with falling
Summary — formulas & gotchas at a glance
A revision cheat-sheet for the formulas and gotchas above. Click any concept name to jump back to its full explanation.
Reference tables (2)
Everyday words and their opposites9 rows
| Word | Meaning | Opposite |
|---|---|---|
| misery | great unhappiness | contentment, happiness |
| clever | quick to learn and understand | foolish |
| ancient | very old, from long ago | modern |
| gratitude | thankfulness | ingratitude |
| scarcity | a shortage | plenty, abundance |
| ascend | to go up | descend |
| honest | telling the truth | dishonest |
| visible | able to be seen | invisible |
| permanent | lasting for ever | temporary |
Harder words and their opposites9 rows
| Word | Meaning | Opposite |
|---|---|---|
| fallible | able to make mistakes | perfect, infallible |
| vague | not clear or definite | precise |
| conscientiously | carefully, with a sense of duty | carelessly |
| incidental | minor, coming along with the main thing | essential |
| disdainful | looking down on others | respectful, reverential |
| vigilant | watchful and alert | oblivious, unaware |
| ratify | to approve a treaty or law formally | annul, cancel |
| frugal | careful not to waste money | extravagant |
| transparent | clear enough to see through | opaque |
Watch out for (7)
- Choosing the synonym by mistake→ Strike the synonyms, then match the strength
- Too strong an opposite→ Strike the synonyms, then match the strength
- Giving up is not losing→ Strike the synonyms, then match the strength
- A prefix does not always mean not→ Everyday words and their opposites
- A word from the same topic is not an opposite→ Everyday words and their opposites
- Three options agree, so the fourth wins→ Harder words and their opposites
- Fallible has nothing to do with falling→ Harder words and their opposites
Test yourself on a real paper
Sit a past SPI paper, timed and marked the way the exam marks it. You see your score and every answer the moment you finish. Free to start.