Synonyms|92Antonyms|38|Broader|1Narrower|12Related|63
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indolence(noun, weakness, indifference)
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insincerity(noun, weakness, indifference)
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lethargy(noun, weakness, indifference)
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levity
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lightheartedness
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merriment
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mirth
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mischief
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mischievousness
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play
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question(noun, weakness, indifference)
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shallowness
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superficiality
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triviality(noun, humor)
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unimportance(noun, weakness, indifference)
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unseriousness
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wavering(noun, weakness, indifference)
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weakness(noun, indifference)
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APASmart Define. (2013). serious-mindedness thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/serious-mindedness/thesaurus/antonyms
ChicagoSmart Define. 2013. "serious-mindedness thesaurus" https://smartdefine.org/serious-mindedness/thesaurus/antonyms (accessed September 28, 2026).
HarvardSmart Define 2013, serious-mindedness thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/serious-mindedness/thesaurus/antonyms>.
MLASmart Define. "serious-mindedness thesaurus" 28 June 2013. Web. 28 September 2026. <https://smartdefine.org/serious-mindedness/thesaurus/antonyms>