Synonyms|426Antonyms|97|Broader|5Narrower|0Related|202
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green
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guileless
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happed
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heart-whole
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heartfelt
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hearty
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honest
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ignorant
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impromptu(adjective, adverb, unrehearsed, improvised)
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improviso(adjective, unmethodical, fluky, lucky-dog)
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inadvertent
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incidental(adjective, deliberate, essential, unmethodical, fluky)
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inessential(adjective, necessary, unmethodical, fluky, lucky-dog)
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ingenuous
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innocent
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instinctive
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involuntary
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jeopardized
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luck in(expression, adjective, unmethodical, fluky, lucky-dog)
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luck out(expression, adjective, deliberate, unmethodical, fluky)
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APASmart Define. (2015). designed thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/designed/thesaurus/antonyms
ChicagoSmart Define. 2015. "designed thesaurus" https://smartdefine.org/designed/thesaurus/antonyms (accessed September 20, 2026).
HarvardSmart Define 2015, designed thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/designed/thesaurus/antonyms>.
MLASmart Define. "designed thesaurus" 13 April 2015. Web. 20 September 2026. <https://smartdefine.org/designed/thesaurus/antonyms>