71 entries under significant topic. ×
| meaningful(substantial, large, considerable) | |
| momentous(substantial, large, considerable) | |
| noticeable(adjective, substantial, large) | |
| plentiful(great, big, substantial, large) | |
| reasonable(substantial, large, adequate) | |
| serious(large, controlled, considerable, orderly) | |
| strong(large, considerable) | |
| valuable(large, considerable) | |
| weighty(substantial, large, considerable) | |
| astronomical(substantial, large) | |
| big-deal(large, considerable) | |
| bulky(great, big, large, huge) | |
| comfortable(substantial, large, generous, good-sized) | |
| commodious(substantial, large) | |
| distinguished(substantial, large) | |
| doozie(substantial, large) | |
| durable(large, considerable) | |
| dynamite(substantial, large) | |
| essential(substantial, large) | |
| extraordinary(large, considerable) |
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| APA | Smart Define. (2015). tidy thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/tidy/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "tidy thesaurus" https://smartdefine.org/tidy/thesaurus/synonyms (accessed September 25, 2026). |
| Harvard | Smart Define 2015, tidy thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/tidy/thesaurus/synonyms>. |
| MLA | Smart Define. "tidy thesaurus" 11 November 2015. Web. 25 September 2026. <https://smartdefine.org/tidy/thesaurus/synonyms> |