Synonyms|1.3kAntonyms|275|Broader|22Narrower|13Related|1.9k
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guarded(adjective, clear, sound, steady)
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gummy
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hard
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hard-and-fast
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hard as nails(expression, idiom, weak, delicate, small)
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hard put
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hard to please
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hard up
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hardboiled
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harmonious
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having all marbles(expression, idiom, stupid, unreasonable)
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hearty
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high-principled(weak, soft)
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home
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house
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household
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imperishable
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imperturbable
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in good health(expression, idiom, small)
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in order(expression, weak, irregular)
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APASmart Define. (2016). unstable thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/unstable/thesaurus/antonyms
ChicagoSmart Define. 2016. "unstable thesaurus" https://smartdefine.org/unstable/thesaurus/antonyms (accessed September 27, 2026).
HarvardSmart Define 2016, unstable thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/unstable/thesaurus/antonyms>.
MLASmart Define. "unstable thesaurus" 26 February 2016. Web. 27 September 2026. <https://smartdefine.org/unstable/thesaurus/antonyms>