Word KnowledgeLesson 7 of 8
Antonyms and Opposites
The opposite-meaning distractor, which is the most reliable trap on the subtest.
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This is a short topic with a large payoff. It is not about learning opposites; it is about recognizing when one is being offered to you and why.
The subtest never asks for an antonym
Some standardized tests have asked for opposites. The ASVAB does not. Word Knowledge asks what a word most nearly means, every time, in both question forms.
So any choice that is the opposite of the tested word is wrong, and it is wrong before you consider anything else. That is the most useful sentence in this lesson.
The reason it needs saying is that under time pressure people answer the question they expect rather than the one on the screen, and a confidently-recognized opposite feels like knowledge.
Why the opposite is the standard distractor
Think about what partial knowledge looks like.
You half-recognize frugal. You know it is about money and spending. You do not remember which way it points. The choices offer "thrifty" and "wasteful", and both are about money and spending.
An opposite is the perfect distractor because it is on the right topic. It shares the subject and fails only on direction, which is exactly the part that partial knowledge does not cover. A random unrelated word would be easy to dismiss; the opposite is not.
That is also why word parts matter so much on this subtest. Direction is what the prefix carries.
Spotting the pair
When two of the four choices are opposites of each other, pay attention.
Hauteur most nearly means
(A) author (B) arrogance (C) moisture (D) humility
Arrogance and humility are opposites. Author and moisture are neither related to each other nor to the pair.
Two things follow.
First, you are probably down to two. A question built around an opposing pair usually has its answer in that pair, because the pair is the point of the question - the test wants to know whether you have the direction.
Second, the unrelated choices can go. Author is a sound-alike and moisture is unrelated to anything.
Now decide between arrogance and humility using anything you have: the word sounds related to haughty, which is arrogant.
(B) arrogance.
The pair heuristic narrows; it does not decide. It gets you from four choices to two, which turns a 25 percent guess into a 50 percent one, and there is no penalty for a wrong answer. Do not treat spotting the pair as having answered the question.
Prefixes make most of the opposites
The mechanism is usually a prefix, which is why the two lessons belong together.
| Word | Its opposite | What changed |
|---|---|---|
| credulous | incredulous | in- negates |
| sympathy | antipathy | anti- opposes |
| benevolent | malevolent | mal- replaces bene- |
| ascend | descend | de- reverses the direction |
| include | exclude | ex- reverses in- |
| prologue | epilogue | before against after |
| fidelity | perfidy | the root is kept, the sense reversed |
Read the prefix before you commit to the direction a root suggests. The root tells you the subject and the prefix tells you which way, and it is the prefix that the opposite-distractor is exploiting.
Common opposite pairs worth knowing
Learning these as pairs is more efficient than learning them singly, and it inoculates you against the trap.
| abundant / scarce | candid / evasive |
| amiable / hostile | diligent / lazy |
| augment / diminish | frugal / extravagant |
| brevity / length | lucid / confusing |
| compliment / insult | novice / expert |
| concise / rambling | placid / agitated |
| conceal / reveal | prudent / reckless |
| deter / encourage | tranquil / turbulent |
| docile / unruly | trivial / significant |
| eloquent / inarticulate | zealous / indifferent |
What you can skip
- Learning lists of opposites. Opposites matter only as distractors to recognize and discard. Three questions have "opposite" in a keyed answer (such as antithesis, "direct opposite"), and those are still synonym questions.
Where people lose points
Answering with the opposite because the question felt like it asked for one. It never does.
Committing to a root's direction without reading the prefix.
Treating the opposing pair as the answer rather than as a narrowing.
Missing that a pair exists because the two words are not obvious opposites - deter and encourage, for instance.
Second-guessing a word you know into its opposite. If your first instinct was confident, do not talk yourself across.
Work one in under a minute
The evidence was spurious, and the case collapsed.
(A) genuine (B) false (C) overwhelming (D) technical
Genuine and false are opposites, so the answer is very likely one of them, and (C) and (D) can go.
Now direction. Context settles it: the case collapsed, which does not follow from genuine evidence.
(B) false.
The pair got you to two in about three seconds, and the sentence decided it. That is the whole method.
Where this leads
Direction is what prefixes carry and what contrast signals reveal, so this topic is really the payoff of the two before it.
Related lessonsReference
- Prefixes - the mechanism behind most opposites
- Context Clues - contrast signals, which point at an opposite deliberately
- Synonyms and Shades of Meaning - deciding between two choices that are not opposites
- How Word Knowledge Is Asked - why the question never asks for an antonym
Practice this topic
Check that this lesson stuck. Answer questions on antonyms and opposites only, and see the right answer and why after each one.
Practice Antonyms and Opposites questions