- Definitions|1
- Thesaurus|206
- Abbreviations|0
19 entries under noun topic. ×
| frivolity | |
| flippancy(weakness, indifference) | |
| lightness | |
| apathy(weakness, indifference) | |
| coldness(weakness, indifference) | |
| coolness(weakness, indifference) | |
| funniness | |
| humor | |
| idleness(weakness, indifference) | |
| indecision(weakness, indifference) | |
| indifference | |
| indolence(weakness, indifference) | |
| insincerity(weakness, indifference) | |
| lethargy(weakness, indifference) | |
| question(weakness, indifference) | |
| triviality | |
| unimportance(weakness, indifference) | |
| wavering(weakness, indifference) | |
| weakness |
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| APA | Smart Define. (2013). serious-mindedness thesaurus. Retrieved October 1, 2026, from https://smartdefine.org/serious-mindedness/thesaurus/antonyms |
| Chicago | Smart Define. 2013. "serious-mindedness thesaurus" https://smartdefine.org/serious-mindedness/thesaurus/antonyms (accessed October 1, 2026). |
| Harvard | Smart Define 2013, serious-mindedness thesaurus, Smart Define, viewed 1 October, 2026, <https://smartdefine.org/serious-mindedness/thesaurus/antonyms>. |
| MLA | Smart Define. "serious-mindedness thesaurus" 28 June 2013. Web. 1 October 2026. <https://smartdefine.org/serious-mindedness/thesaurus/antonyms> |