82 entries under adjective topic. ×
| facetious | |
| farcical | |
| frolicsome | |
| happy(upset, false, miserable, dishonest) | |
| ridiculous(stupid, funny) | |
| risible | |
| sappy(foolish, sentimental) | |
| zany(crazy, funny) | |
| casual(deliberate, manner, nonchalant) | |
| cute | |
| harmless | |
| hilarious | |
| merry(happy, festive) | |
| flimsy(strong, sound, implausible, unconvincing) | |
| brisk | |
| chirpy | |
| effervescent(enthusiastic, vivacious) | |
| fanciful(reasonable, sensible, romantic, imaginary) | |
| frisky | |
| gay |
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| APA | Smart Define. (2016). serious thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/serious/thesaurus/antonyms |
| Chicago | Smart Define. 2016. "serious thesaurus" https://smartdefine.org/serious/thesaurus/antonyms (accessed September 27, 2026). |
| Harvard | Smart Define 2016, serious thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/serious/thesaurus/antonyms>. |
| MLA | Smart Define. "serious thesaurus" 24 February 2016. Web. 27 September 2026. <https://smartdefine.org/serious/thesaurus/antonyms> |