112 entries under significant topic. ×
| super(adjective, great, important, substantial) | |
| astronomical(substantial, large, huge, immense) | |
| noteworthy(important, substantial, large) | |
| much(substantial, large) | |
| paramount(adjective, important, vital, main) | |
| popular(adjective, good, important, famous) | |
| solid(adjective, person, body, strong, sound) | |
| sound(adjective, strong, tough, solid, heavy) | |
| chief(substantial, valuable, vital, main) | |
| fab(important, substantial, large) | |
| major-league(large, considerable) | |
| plentiful(adjective, great, complete, substantial) | |
| primary(important, substantial, large, serious) | |
| salient(substantial, valuable, vital, imperative) | |
| valuable(adjective, good, strong, great, important) | |
| well-built(adjective, person, body, strong, sound) | |
| appreciable(adjective, substantial, large) | |
| conspicuous(important, famous, familiar, affected) | |
| crucial(heavy, important, substantial, valuable) | |
| distinguished(adjective, important, famous, familiar) |
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| APA | Smart Define. (2016). big thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/big/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "big thesaurus" https://smartdefine.org/big/thesaurus/synonyms (accessed September 24, 2026). |
| Harvard | Smart Define 2016, big thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/big/thesaurus/synonyms>. |
| MLA | Smart Define. "big thesaurus" 29 March 2016. Web. 24 September 2026. <https://smartdefine.org/big/thesaurus/synonyms> |