164 entries under significant topic. ×
| massive(large, considerable) | |
| meat and potatoes(expression, idiom, important, vital) | |
| name of game(expression, adjective, idiom, essential) | |
| noted(adjective, important, critical, prominent) | |
| obligatory(adjective, essential, basic, vital) | |
| plentiful(large, considerable) | |
| puissant(adjective, fine, important, grand) | |
| sizable(large, considerable) | |
| solid(large, considerable) | |
| sound(large, considerable) | |
| specified(adjective, essential, basic, vital) | |
| stable(large, considerable) | |
| steady(usual, large, universal, general) | |
| stout(large, considerable) | |
| strong(large, considerable) | |
| sturdy(large, considerable) | |
| sublime(adjective, fine, important, grand) | |
| superabundant(large, considerable) | |
| talented(adjective, fine, important, famous) | |
| tidy(large, considerable) |
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| APA | Smart Define. (2016). principal thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/principal/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "principal thesaurus" https://smartdefine.org/principal/thesaurus/synonyms (accessed September 27, 2026). |
| Harvard | Smart Define 2016, principal thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/principal/thesaurus/synonyms>. |
| MLA | Smart Define. "principal thesaurus" 29 March 2016. Web. 27 September 2026. <https://smartdefine.org/principal/thesaurus/synonyms> |