130 entries under significant topic. ×
| definite(substantial, considerable) | |
| detectable(substantial, considerable) | |
| discernible(substantial, definite, considerable) | |
| distinguishable(substantial, considerable) | |
| doozie | |
| dynamite(outstanding, substantial, impressive, imposing) | |
| estimable(substantial, definite, considerable) | |
| evident(substantial, definite, considerable) | |
| firm | |
| grave(big, substantial, valuable, vital) | |
| key(vital, considerable, imperative) | |
| manifest(substantial, definite, considerable) | |
| much(substantial, quite, fairly, moderately) | |
| not inconsiderable(expression, adjective) | |
| noteworthy | |
| observable(substantial, definite, considerable) | |
| palpable(substantial, considerable) | |
| perceivable(substantial, definite, considerable) | |
| perceptible(substantial, considerable) | |
| plain(substantial, definite, considerable) |
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| APA | Smart Define. (2016). large thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/large/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "large thesaurus" https://smartdefine.org/large/thesaurus/synonyms (accessed September 24, 2026). |
| Harvard | Smart Define 2016, large thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/large/thesaurus/synonyms>. |
| MLA | Smart Define. "large thesaurus" 29 March 2016. Web. 24 September 2026. <https://smartdefine.org/large/thesaurus/synonyms> |