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English Grammar - Synonyms and Antonyms: 27 MCQs with Answers

Synonyms and Antonyms - English Grammar
English Grammar - Synonyms and Antonyms

English Grammar- Synonyms and Antonyms

Vocabulary based multiple choice questions on synonyms and antonyms with answers and detailed explanations for teaching eligibility tests.
10 min read 27 Questions

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Q11. Select the most appropriate synonym of the given word: ABNEGATE

Right Answer: Renounce

Explanation:

The verb 'abnegate' comes from the Latin 'abnegare', meaning to refuse or deny. In modern English it means to renounce or surrender something voluntarily, particularly a right, a claim, a belief or a personal comfort. A monk who abnegates worldly pleasures gives them up deliberately. Among the given options, 'renounce' expresses exactly this act of formally giving something up, so it is the correct synonym. The remaining choices point in the opposite direction: 'demand' means to claim forcefully, while 'accept' and 'support' both indicate embracing rather than surrendering. Hence the correct answer is Renounce.
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Q12. Select the most appropriate antonym of the given word: Puissant

Right Answer: Feeble

Explanation:

'Puissant' is a somewhat literary adjective meaning having great power, influence or authority, and it is related to the French verb 'pouvoir', meaning to be able. A puissant monarch is a mighty one. An antonym must therefore express weakness or lack of strength. Among the options, 'feeble' means lacking physical or moral force and is the direct opposite, so it is the correct answer. The other three are traps because 'robust', 'powerful' and 'strong' are all synonyms of puissant rather than antonyms. Hence the correct answer is Feeble.
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Q13. Select the most appropriate synonym of the given word: NEBULOUS

Right Answer: Vague

Explanation:

The adjective 'nebulous' comes from the Latin 'nebula', meaning mist or cloud, and originally described something cloudy in appearance. In modern usage it describes an idea, plan or statement that is hazy, ill-defined and lacking clear outline, as in a nebulous proposal that nobody can act upon. Among the given options, 'vague' expresses exactly this lack of definiteness and is therefore the correct synonym. The remaining three choices all move in the opposite direction: 'precise', 'obvious' and 'clear' each describe something sharply defined or easily understood. Hence the correct answer is Vague.
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Q14. Select the most appropriate antonym of the given word: Erudite

Right Answer: Uninformed

Explanation:

'Erudite' describes a person who has acquired extensive knowledge through wide reading and study, and it is often used of scholars and their writing. An antonym must therefore express an absence of such knowledge. Among the options, 'uninformed' means lacking knowledge or awareness of a subject and is the direct opposite, so it is the correct answer. The other three are deliberate traps because 'scholarly', 'learned' and 'intellectual' are all close synonyms of erudite rather than antonyms. Candidates should always check whether three options cluster together in meaning. Hence the correct answer is Uninformed.
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Q15. Select the most appropriate antonym of the given word: Encomium

Right Answer: Castigation

Explanation:

An 'encomium' is a formal speech or piece of writing that warmly praises someone or something, often delivered on a ceremonial occasion. Its antonym must therefore express severe criticism or rebuke. 'Castigation' means harsh reprimand or punishment through words and is the direct opposite, so it is the correct answer. The other three options are all synonyms of encomium: a 'panegyric' is itself an elaborate speech of praise, 'praise' is the plain equivalent, and a 'tribute' is an act or statement showing admiration. Hence the correct answer is Castigation.
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Q16. Select the most appropriate synonym of the given word: NEBULOUS

Right Answer: Vague

Explanation:

The word 'nebulous' comes from the Latin word 'nebula', meaning mist or cloud. It describes something hazy, unclear or lacking definite form and outline, and it is often used for ideas, plans or explanations that have not been clearly worked out. For example, we may speak of a nebulous proposal that nobody fully understands. Among the given options, 'vague' carries exactly this sense of being indistinct and imprecise. The remaining three words, precise, obvious and clear, all suggest sharpness and clarity, so they are antonyms rather than synonyms. Hence the correct answer is 'Vague'.
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Q17. Select the most appropriate antonym of the given word: Erudite

Right Answer: Uninformed

Explanation:

The adjective 'erudite' describes a person who has great knowledge acquired through wide reading and serious study. It is generally used for scholars, critics and writers whose work shows deep learning. To find its antonym, we must look for a word that suggests the absence of knowledge or study. 'Uninformed' means lacking knowledge or awareness of a subject, which is the direct opposite of erudite. The other three options, scholarly, learned and intellectual, are all close synonyms of erudite and therefore cannot be the answer. Hence the correct antonym is 'Uninformed'.
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Q18. Select the most appropriate antonym of the given word: Encomium

Right Answer: Castigation

Explanation:

An 'encomium' is a formal speech or piece of writing that offers warm and enthusiastic praise to a person or achievement. Therefore, its antonym must express severe criticism or rebuke. 'Castigation' means harsh reprimand or strong criticism, which is exactly the opposite of praising someone. The other options move in the same direction as the given word, because 'panegyric' is a public speech of elaborate praise, 'praise' is direct approval, and 'tribute' is an act or statement showing respect and admiration. Since all three are synonyms of encomium, the correct antonym is 'Castigation'.
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Q19. Select the most appropriate synonym of the given word: CAUSTIC

Right Answer: Sarcastic

Explanation:

The word 'caustic' has two senses. Literally it describes a substance capable of burning or corroding organic tissue, such as caustic soda. Figuratively, and far more commonly in vocabulary questions, it describes remarks or humour that are bitingly sarcastic, cutting and severely critical. A caustic reply is one designed to wound. Among the options, 'sarcastic' is the only word carrying this sense of sharp, mocking criticism. 'Kind', 'mild' and 'gentle' all denote softness and consideration, making them antonyms rather than synonyms. Hence option four is correct.
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Q20. Select the most appropriate antonym of the given word: Evanescent

Right Answer: Enduring

Explanation:

'Evanescent' describes something that vanishes quickly and lasts only a very short time, like a scent or a passing mood. It derives from the Latin 'evanescere', meaning to disappear. The question asks for an antonym, so the required word must convey permanence. 'Enduring' means lasting over a long period and continuing to exist, which is the direct opposite. The distractors are traps because 'ephemeral', 'transient' and 'fleeting' are all synonyms of evanescent, each describing brief duration. Candidates who misread the task as a synonym test pick one of these. Hence option three is correct.
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Published: 27 July 2026 | Last Updated: 03 September 2026 |

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Deepak - Educational Content Creator

Written by Deepak

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