- Definitions|1
- Thesaurus|333
- Abbreviations|0
| inobservance | |
| insanity | |
| insignificance(unimportance, triviality, levity, superficiality, worthlessness) | |
| irrelevance(unimportance, negligible, worthlessness, inconsequence, pettiness) | |
| jest(noun, merriment, triviality, levity, silliness) | |
| light-heartedness | |
| lightheartedness(merriment, triviality, levity, silliness, inappropriateness) | |
| lunacy | |
| madness | |
| meaninglessness(noun, idleness, uselessness, emptiness, worthlessness) | |
| negligence | |
| negligibility(noun, unimportance, negligible, worthlessness, inconsequence) | |
| nonobservance | |
| nonsense(merriment, triviality, levity, silliness, flightiness) | |
| paltriness(triviality, negligible, levity, superficiality, worthlessness) | |
| play(merriment, triviality, levity, silliness, superficiality) | |
| playfulness(noun, merriment, perkiness) | |
| pointlessness(noun, idleness, uselessness, emptiness, futility) | |
| prank | |
| puerility(sport, merriment, triviality, levity, silliness) |
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| APA | Smart Define. (2015). frivolousness thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/frivolousness/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "frivolousness thesaurus" https://smartdefine.org/frivolousness/thesaurus/synonyms (accessed September 26, 2026). |
| Harvard | Smart Define 2015, frivolousness thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/frivolousness/thesaurus/synonyms>. |
| MLA | Smart Define. "frivolousness thesaurus" 14 April 2015. Web. 26 September 2026. <https://smartdefine.org/frivolousness/thesaurus/synonyms> |