79 entries under significant topic. ×
| marked(adjective, clear, great, see, rough) | |
| central(adjective, important, vital, imperative) | |
| eventful(adjective, great, extraordinary, importance, important) | |
| famous(adjective, great, solid, extraordinary, unusual) | |
| unforgettable(adjective, great, extraordinary, importance, important) | |
| weighty(adjective, solid, extraordinary, importance, unusual) | |
| vital(adjective, important, imperative) | |
| celebrated(adjective, great, extraordinary, important, wonderful) | |
| crucial(adjective, great, extraordinary, important, lively) | |
| great(adjective, extraordinary, wonderful, famous, exceptional) | |
| meaningful(adjective, important, outstanding, vital) | |
| serious(adjective, great, extraordinary, important, outstanding) | |
| considerable(adjective, clear, vital, greatness) | |
| impressive(adjective, great, solid, extraordinary, unusual) | |
| key(noun, adjective, information, sign, influence) | |
| preeminent(adjective, great, solid, extraordinary, unusual) | |
| big(vital, greatness, imperative) | |
| critical(adjective, great, extraordinary, lively) | |
| esteemed(great, famous, outstanding, vital) | |
| heavy(great, extraordinary, outstanding, splendid) |
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| APA | Smart Define. (2016). signal thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/signal/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "signal thesaurus" https://smartdefine.org/signal/thesaurus/synonyms (accessed September 28, 2026). |
| Harvard | Smart Define 2016, signal thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/signal/thesaurus/synonyms>. |
| MLA | Smart Define. "signal thesaurus" 1 March 2016. Web. 28 September 2026. <https://smartdefine.org/signal/thesaurus/synonyms> |