- Definitions|3
- Thesaurus|2.9k
- Abbreviations|0
| heedless(adjective, free, careless, wild, silly) | |
| immaterial(adjective, mean, slight, lower, thin) | |
| inapplicable(insignificant, inconsequential, irrelevant) | |
| incidental(adjective, mean, slight, small, unimportant) | |
| inconsistent(stupid, chance, unreliable, changeable, absurd) | |
| insane | |
| insipid(adjective, unimportant) | |
| irresolute(adjective, careless, changeable, untrue, erratic) | |
| jovial | |
| juvenile(adjective, silly, trivial) | |
| light-hearted(adjective, amusing) | |
| lightheaded(excited, silly, unreliable, changeable, fearful) | |
| little(adjective, mean, slight, lower, value) | |
| ludicrous | |
| mad | |
| mercurial(adjective, impulsive, unpredictable, unreliable, changeable) | |
| mere(adjective, unimportant) | |
| mindless | |
| minute(adjective, mean, weak, soft, slight) | |
| nonsensical |
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| APA | Smart Define. (2015). frivolous thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/frivolous/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "frivolous thesaurus" https://smartdefine.org/frivolous/thesaurus/synonyms (accessed September 26, 2026). |
| Harvard | Smart Define 2015, frivolous thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/frivolous/thesaurus/synonyms>. |
| MLA | Smart Define. "frivolous thesaurus" 13 April 2015. Web. 26 September 2026. <https://smartdefine.org/frivolous/thesaurus/synonyms> |