82 entries under adjective topic. ×

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cordial
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dependent(importance, valuable, main, notable)
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energetic
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enthusiastic
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healthy
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hearty
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invigorating
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irrepressible(vivacious, effervescent)
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jaunty
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jovial
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likable
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lively
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luminous
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nimble
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perky
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pleasant
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radiant
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refreshing
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side(minor, flanking)
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splendid
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APASmart Define. (2016). serious thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/serious/thesaurus/antonyms
ChicagoSmart Define. 2016. "serious thesaurus" https://smartdefine.org/serious/thesaurus/antonyms (accessed September 28, 2026).
HarvardSmart Define 2016, serious thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/serious/thesaurus/antonyms>.
MLASmart Define. "serious thesaurus" 24 February 2016. Web. 28 September 2026. <https://smartdefine.org/serious/thesaurus/antonyms>