Synonyms|330Antonyms|107|Broader|4Narrower|0Related|201

50 entries under adjective topic. ×

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enigmatic
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equivocal
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feeble
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fishy
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fragile
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halfhearted
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hidden
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hypothetical
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iffy
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implausible
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imprecise
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improbable
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incredulous
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indeterminate
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insecure
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irregular
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precarious
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problematic
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problematical
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recondite
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APASmart Define. (2015). doubtless thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/doubtless/thesaurus/antonyms
ChicagoSmart Define. 2015. "doubtless thesaurus" https://smartdefine.org/doubtless/thesaurus/antonyms (accessed September 24, 2026).
HarvardSmart Define 2015, doubtless thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/doubtless/thesaurus/antonyms>.
MLASmart Define. "doubtless thesaurus" 10 April 2015. Web. 24 September 2026. <https://smartdefine.org/doubtless/thesaurus/antonyms>