12 entries under important topic. ×
| unimportant(adjective, substantial) | |
| insignificant(adjective, substantial) | |
| trivial(adjective, substantial, unimportant, serious) | |
| inconsequential(adjective, dull, insignificant) | |
| slight(adjective, small, insignificant, large) | |
| immaterial(adjective, useful) | |
| moderate(adjective, fair, extreme, average) | |
| secondary | |
| weightless | |
| wimpy | |
| shoestring | |
| substract |
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| APA | Smart Define. (2016). significant thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/significant/thesaurus/antonyms |
| Chicago | Smart Define. 2016. "significant thesaurus" https://smartdefine.org/significant/thesaurus/antonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2016, significant thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/significant/thesaurus/antonyms>. |
| MLA | Smart Define. "significant thesaurus" 4 March 2016. Web. 23 September 2026. <https://smartdefine.org/significant/thesaurus/antonyms> |