Synonyms|973Antonyms|282|Broader|11Narrower|17Related|1.2k
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ill health
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ill humor
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ill humour
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ill service
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ill turn
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ill will
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illiberal
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inappropriate(adjective, cool, cold, useless)
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inauspicious
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inefficacious
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inessential(adjective, cool, cold, useless)
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inexpedient
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inhumane(good, mild)
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inopportune(adjective, cool, cold, useless)
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insensitive
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insignificant(adjective, cool, cold, useless)
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insubordinate
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intransigent
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introverted
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inutile
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ChicagoSmart Define. 2016. "helpful thesaurus" https://smartdefine.org/helpful/thesaurus/antonyms (accessed September 25, 2026).
HarvardSmart Define 2016, helpful thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/helpful/thesaurus/antonyms>.
MLASmart Define. "helpful thesaurus" 24 March 2016. Web. 25 September 2026. <https://smartdefine.org/helpful/thesaurus/antonyms>