- Definitions|2
- Thesaurus|4.5k
- Abbreviations|0
18 entries under significant topic. ×
| substantial(adjective, important, ample) | |
| important(adjective, outstanding, substantial, valuable) | |
| big(adjective, substantial) | |
| consequential(adjective, small, substantial) | |
| meaningful(adjective, substantial, little, meaningless) | |
| major(adjective, important, inferior, substantial) | |
| valuable(adjective, substantial) | |
| fateful | |
| large(adjective, slight, poor, substantial) | |
| eventful(adjective, busy) | |
| huge(adjective, poor, substantial, tiny) | |
| worthwhile(adjective, substantial) | |
| meaty(adjective, thin) | |
| pregnant(adjective, meaningful) | |
| relevant(adjective, substantial, unrelated) | |
| memorable(adjective, noteworthy) | |
| sensible(adjective, substantial) | |
| useful(adjective, substantial) |
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| APA | Smart Define. (2016). insignificant thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/insignificant/thesaurus/antonyms |
| Chicago | Smart Define. 2016. "insignificant thesaurus" https://smartdefine.org/insignificant/thesaurus/antonyms (accessed September 26, 2026). |
| Harvard | Smart Define 2016, insignificant thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/insignificant/thesaurus/antonyms>. |
| MLA | Smart Define. "insignificant thesaurus" 29 March 2016. Web. 26 September 2026. <https://smartdefine.org/insignificant/thesaurus/antonyms> |