- Definitions|0
- Thesaurus|50
- Abbreviations|0
34 entries under adjective topic. ×
| of no avail(expression, idiom, empty, worthless) | |
| otiose(empty, worthless, frivolous, ineffective) | |
| rambling(empty, worthless, frivolous, ineffective) | |
| tongue-in-cheek(ironic, insincere) | |
| unavailing(empty, worthless, frivolous, ineffective) | |
| unhelpful(empty, worthless, frivolous, ineffective) | |
| unnecessary(empty, worthless, frivolous, ineffective) | |
| unproductive(empty, worthless, frivolous, ineffective) | |
| unsuccessful(empty, worthless, frivolous, ineffective) | |
| useless(empty, worthless, frivolous, ineffective) | |
| vain(empty, worthless, frivolous, ineffective) | |
| venial | |
| worthless(empty, frivolous, ineffective, futile) | |
| insignificant(empty, worthless, frivolous, ineffective) |
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| APA | Smart Define. (2015). not serious thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/not_serious/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "not serious thesaurus" https://smartdefine.org/not_serious/thesaurus/synonyms (accessed September 27, 2026). |
| Harvard | Smart Define 2015, not serious thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/not_serious/thesaurus/synonyms>. |
| MLA | Smart Define. "not serious thesaurus" 14 April 2015. Web. 27 September 2026. <https://smartdefine.org/not_serious/thesaurus/synonyms> |