138 entries under significant topic. ×
| important(adjective, bad, great, position, tough) | |
| principal(adjective, bad, great, position, top) | |
| superior(adjective, bad, great, top, excellent) | |
| main(adjective, bad, great, position, top) | |
| chief(adjective, bad, great, top, excellent) | |
| primary(adjective, good, top, lead, fine) | |
| prime(adjective, lead, important, head) | |
| crucial(adjective, great, tough, severe, heavy) | |
| capital(adjective, good, bad, great, excellent) | |
| great(adjective, bad, excellent, big, heavy) | |
| big(adjective, good, important, substantial) | |
| leading(adjective, top, fine, superior, big) | |
| momentous(adjective, bad, great, tough, severe) | |
| outstanding(adjective, great, excellent, superior, important) | |
| considerable(adjective, important, substantial, large) | |
| key(adjective, lead, important, head) | |
| serious(adjective, great, unpleasant, heavy, important) | |
| critical(adjective, great, heavy, important) | |
| notable(adjective, great, heavy, important, wonderful) | |
| noteworthy(adjective, good, important, wonderful, exceptional) |
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| APA | Smart Define. (2015). major thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/major/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "major thesaurus" https://smartdefine.org/major/thesaurus/synonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2015, major thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/major/thesaurus/synonyms>. |
| MLA | Smart Define. "major thesaurus" 6 July 2015. Web. 23 September 2026. <https://smartdefine.org/major/thesaurus/synonyms> |