30 entries under adjective topic. ×
| operative | |
| probatory | |
| epoch-making | |
| earthshaking | |
| epochal | |
| evidential | |
| evidentiary | |
| fundamental | |
| key | |
| momentous | |
| monumental | |
| noteworthy | |
| portentous | |
| probative | |
| remarkable | |
| world-shaking | |
| world-shattering | |
| gargantuan | |
| large | |
| prodigious |
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| APA | Smart Define. (2016). significant thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/significant/thesaurus/related |
| Chicago | Smart Define. 2016. "significant thesaurus" https://smartdefine.org/significant/thesaurus/related (accessed September 25, 2026). |
| Harvard | Smart Define 2016, significant thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/significant/thesaurus/related>. |
| MLA | Smart Define. "significant thesaurus" 4 March 2016. Web. 25 September 2026. <https://smartdefine.org/significant/thesaurus/related> |