578 entries under adjective topic. ×
| first(superior, unusual, important, rank) | |
| generous(large, considerable) | |
| glaring | |
| haughty(importance, valuable, main, notable) | |
| healthy(big, important, substantial, definite) | |
| helpful(useful, valuable, effective, beneficial) | |
| high-up(importance, valuable, main, notable) | |
| highest(rank, post, status, main) | |
| illustrious(outstanding, prominent, remarkable, notable) | |
| indicatory(characteristic, representative, telling, ominous) | |
| key-note(importance, valuable, main, notable) | |
| meritorious | |
| obvious(clear, substantial, definite, evident) | |
| older(rank, post, status, age) | |
| patent(clear, unusual, important, exceptional) | |
| plentiful(comfort, rich, well, convenient) | |
| potent(clear, strong, important, powerful) | |
| pre-eminent | |
| prodigious(extraordinary, unusual, important, strange) | |
| profound |
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| APA | Smart Define. (2016). significant thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/significant/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "significant thesaurus" https://smartdefine.org/significant/thesaurus/synonyms (accessed September 24, 2026). |
| Harvard | Smart Define 2016, significant thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/significant/thesaurus/synonyms>. |
| MLA | Smart Define. "significant thesaurus" 4 March 2016. Web. 24 September 2026. <https://smartdefine.org/significant/thesaurus/synonyms> |