Synonyms|664Antonyms|113|Broader|5Narrower|0Related|240
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accredit
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adopt
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affirm
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allege
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appeal
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assent
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assign
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assist(verb, support, help)
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assume
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assure
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attest
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aver
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award
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base
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bear
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boost
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brace up(expression, hurt, reject, block)
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cajole
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canonize
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certify
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APASmart Define. (2015). impugn thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/impugn/thesaurus/antonyms
ChicagoSmart Define. 2015. "impugn thesaurus" https://smartdefine.org/impugn/thesaurus/antonyms (accessed September 24, 2026).
HarvardSmart Define 2015, impugn thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/impugn/thesaurus/antonyms>.
MLASmart Define. "impugn thesaurus" 10 April 2015. Web. 24 September 2026. <https://smartdefine.org/impugn/thesaurus/antonyms>