Vocabulary — Synonyms and Antonyms

Synonyms and antonyms are a steady scorer in NDA GAT English — several direct questions each paper, plus vocabulary that helps comprehension and cloze. The route to marks is systematic word-building, not rote memorising.

Core ideas

A synonym is a word of similar meaning; an antonym is opposite in meaning. NDA tests moderate-to-difficult words, often through context.

Build vocabulary through roots and affixes:

• Prefixes: 'a-/an-' (without: atheist), 'bene-' (good: benefit), 'mal-' (bad: malign), 'circum-' (around: circumnavigate).
• Roots: 'bell' (war: belligerent), 'chron' (time: chronology), 'vita' (life: vital), 'aud' (hear: audible).
• Suffixes shift part of speech: '-ous', '-ful', '-tion'.

Context is decisive: the same word can have several senses; NDA usually wants the meaning fitting the sentence, not the most common one.

Common exam pairs: benevolent/kind, candid/frank, obscure/unclear, transient/temporary; antonyms like frugal↔lavish, benign↔harmful, augment↔diminish.

Exam Tricks & Tips

• 🎯 Break an unknown word into prefix + root + suffix to infer meaning (e.g. 'malevolent' = mal 'bad' + volent 'wishing').
• 🎯 For antonyms, first find the exact meaning, then pick the true opposite — beware near-synonyms placed as traps.
• 🎯 Use the word's part of speech to eliminate options that don't match grammatically.
• 🎯 Positive vs negative connotation often separates the answer from distractors quickly.
• 🎯 Read the given word in a quick mental sentence to fix its sense before scanning options.
• ❌ Common mistake: picking a word that is related but not opposite for an antonym (e.g. 'hot' for 'cold' vs a distractor 'warm'). The strongest, most exact opposite is correct.

Expected exam pattern

Expect several 'choose the synonym/antonym of the underlined word' items, sometimes within a sentence for context. Words are moderate-difficulty; roots and connotation crack most.

Quick recap

Grow vocabulary via prefixes, roots and suffixes; decode unknown words by parts. For synonyms match meaning and part of speech; for antonyms find the exact opposite, using connotation to reject near-synonym traps.

Cover, recall, check. 12 cards on word meanings and roots.

Q1. Difference between a synonym and an antonym?
A1. Synonym = similar meaning; antonym = opposite meaning.

Q2. Meaning of the prefix 'mal-'?
A2. Bad/wrong (malign, malevolent, malfunction).

Q3. Meaning of the root 'chron'?
A3. Time (chronology, chronic, synchronise).

Q4. Synonym of 'candid'?
A4. Frank / honest.

Q5. Synonym of 'transient'?
A5. Temporary / short-lived.

Q6. Antonym of 'frugal'?
A6. Lavish / extravagant.

Q7. Antonym of 'augment'?
A7. Diminish / reduce.

Q8. Meaning of 'benevolent'?
A8. Kind / well-meaning (bene = good).

Q9. Meaning of 'obscure'?
A9. Unclear / not well known.

Q10. Meaning of the prefix 'circum-'?
A10. Around (circumnavigate, circumference).

Q11. Antonym of 'benign'?
A11. Harmful / malignant.

Q12. Best strategy for an unknown word?
A12. Split into prefix + root + suffix to infer meaning.

A strong vocabulary directly converts to marks in the NDA English paper's synonym and antonym questions — and it quietly speeds up comprehension everywhere else.

Core idea / what this tests: Knowing precise word meanings and their opposites, and inferring meaning from roots and context.

Deep explanation

Beginner — Synonyms and antonyms defined

A synonym is a word with the same or nearly the same meaning (big / large / enormous); an antonym has the opposite meaning (increase / decrease). Exam questions give a word and ask for the closest in meaning or the most nearly opposite among four options.

Intermediate — Roots, prefixes and suffixes

Many English words are built from Latin/Greek parts. Recognising them cracks unfamiliar words:

• Prefixes: un-, in-, dis-, mis- (negation); pre- (before), post- (after), sub- (under), super- (above).
• Roots: "bene" (good), "mal" (bad), "vita/bio" (life), "chrono" (time), "phil" (love).
• Suffixes: -able (capable of), -logy (study of), -phobia (fear of).
  So "benevolent" = wishing good; "malevolent" = wishing harm.

Advanced — Shades of meaning and context

Options often include near-synonyms; pick the one matching register and connotation. "Thin", "slim", "skinny" and "gaunt" all mean low body-mass but differ in tone (slim = positive, gaunt = unhealthy). In context questions, substitute each option into the sentence and keep the one that preserves meaning.

Worked example

Choose the synonym of "AUGMENT": (a) reduce (b) increase (c) hide (d) confuse.
"Augment" means to make larger or add to. The word closest in meaning is (b) increase. (Option (a) reduce is its antonym — a classic trap.)

NDA relevance

Synonyms/antonyms are direct, quick marks and recur every year. A wide vocabulary also raises accuracy in reading comprehension, cloze tests and one-word substitution — so vocabulary study compounds across the whole paper.

Exam tricks & shortcuts

• Learn words in synonym–antonym pairs (augment↔diminish) — you cover both question types at once.
• Use word roots to decode unknown words rather than guessing blindly.
• Watch for the antonym trap in synonym questions (and vice versa) — read the question stem carefully.
• Eliminate options that differ in part of speech from the given word.

Worked Example

Problem: Choose the word nearest in meaning (synonym) to BENEVOLENT, then give its antonym.
"The benevolent king reduced taxes during the famine."
(a) cruel (b) kind-hearted (c) wealthy (d) strict

Solution:
Break the word down: "bene-" is a Latin root meaning "good/well" (as in benefit, benefactor), and "-volent" comes from "velle" = to wish. So benevolent literally means "wishing well" — that is, kind and generous.

Test each option against the context "reduced taxes during the famine," which shows a caring, generous act:

• (a) cruel — the opposite feeling; rejected.
• (c) wealthy — the king may be rich, but that is not what "benevolent" means; rejected.
• (d) strict — describes discipline, not kindness; rejected.
• (b) kind-hearted — matches "wishing good to others" and fits the context.

Antonym: the word with the opposite root "male-" (bad) gives MALEVOLENT, meaning wishing harm to others. Other acceptable antonyms: cruel, malicious, unkind.

Answer: Synonym = (b) kind-hearted; Antonym = malevolent (cruel/malicious).