14 entries under trivial topic. ×
| unnecessary(adjective, unimportant, valuable, required) | |
| voluntary(adjective, unimportant) | |
| inessential(noun, adjective, unimportant) | |
| needless(adjective, reasonable, unimportant) | |
| unimportant(adjective, important, substantial) | |
| nonessential(adjective, important, unimportant, essential) | |
| useless(adjective, unimportant) | |
| extra(adjective, common, usual, unimportant) | |
| contingent(adjective, unimportant) | |
| additional(adjective, unimportant, extra, supplementary) | |
| insignificant(adjective, unimportant) | |
| secondary(adjective, important, useful, unimportant) | |
| minor(adjective, superior, big, unimportant) | |
| petty(adjective, insignificant) |
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| APA | Smart Define. (2015). necessary thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/necessary/thesaurus/antonyms |
| Chicago | Smart Define. 2015. "necessary thesaurus" https://smartdefine.org/necessary/thesaurus/antonyms (accessed September 30, 2026). |
| Harvard | Smart Define 2015, necessary thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/necessary/thesaurus/antonyms>. |
| MLA | Smart Define. "necessary thesaurus" 2 November 2015. Web. 30 September 2026. <https://smartdefine.org/necessary/thesaurus/antonyms> |