- Definitions|2
- Thesaurus|1.7k
- Abbreviations|0
106 entries under substantial topic. ×
| appreciable(adjective, significant, large, obvious) | |
| clear-cut(adjective, clear, plain, exact) | |
| discernible(adjective, clear, plain, definite) | |
| distinguishable(adjective, exact, significant, obvious) | |
| earnest(adjective, strong, intense, big, powerful) | |
| estimable(significant, definite, considerable) | |
| momentous(adjective, great, solid, extraordinary, superior) | |
| observable(adjective, clear, see, serious) | |
| of note(expression, big, significant, valuable) | |
| perceptible(adjective, clear, plain, obvious) | |
| super(adjective, solid, extraordinary, wonderful, exceptional) | |
| big(significant, large, valuable, vital) | |
| chief(adjective, great, extraordinary, superior, big) | |
| crucial(big, important, powerful, significant) | |
| decisive(big, important, powerful, significant) | |
| detectable(significant, obvious, visible, considerable) | |
| determining(big, significant, valuable, vital) | |
| essential(adjective, great, big, significant, individual) | |
| exigent(big, significant, valuable, vital) | |
| extensive(big, significant, large, valuable) |
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| APA | Smart Define. (2015). marked thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/marked/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "marked thesaurus" https://smartdefine.org/marked/thesaurus/synonyms (accessed September 22, 2026). |
| Harvard | Smart Define 2015, marked thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/marked/thesaurus/synonyms>. |
| MLA | Smart Define. "marked thesaurus" 17 July 2015. Web. 22 September 2026. <https://smartdefine.org/marked/thesaurus/synonyms> |