Synonyms|129Antonyms|95|Broader|0Narrower|0Related|227
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unfriendly(adjective, wild)
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unglued
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unhinged
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unpopular(adjective, excited, loud)
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unquiet
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unrealistic(adjective, careless, unsound)
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unreasonable(adjective, careless, unsound)
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unsettled
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unsound(adjective, careless)
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unstable
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unstrung
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unthinking
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unwise(adjective, careless, unsound)
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uptight
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warm(adjective, excited, loud)
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APASmart Define. (2015). coolheaded thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/coolheaded/thesaurus/antonyms
ChicagoSmart Define. 2015. "coolheaded thesaurus" https://smartdefine.org/coolheaded/thesaurus/antonyms (accessed September 25, 2026).
HarvardSmart Define 2015, coolheaded thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/coolheaded/thesaurus/antonyms>.
MLASmart Define. "coolheaded thesaurus" 14 April 2015. Web. 25 September 2026. <https://smartdefine.org/coolheaded/thesaurus/antonyms>