60 entries under principal topic. ×
| inaugural(adjective, order, heavy, important, head) | |
| initial(adjective, order, heavy, important, head) | |
| momentous(adjective, bad, great, excellent, superior) | |
| most important(expression, adjective, order, top, heavy) | |
| popular(adjective, important, famous, prominent, main) | |
| prominent(adjective, important, wonderful, famous, exceptional) | |
| ruling(adjective, important, head, original, prominent) | |
| skipper(noun, head, effort, boss, leader) | |
| tough(quality, superior, heavy, best) | |
| well-known(adjective, bad, great, excellent, important) | |
| controlling(adjective, essential, main, primary) | |
| dominating(adjective, important, prominent, foremost) | |
| especial(adjective, popular, main, primary) | |
| essential(adjective, main, primary, central) | |
| governing(adjective, important, prominent, foremost) | |
| key player(noun, expression, boss, leader) | |
| linchpin(noun, boss, leader, superstar) | |
| noted(adjective, important, prominent, foremost) | |
| state-of-the-art(quality, tough, superior, heavy, best) | |
| vital(adjective, essential, main, primary) |
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| APA | Smart Define. (2016). number one thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/number_one/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "number one thesaurus" https://smartdefine.org/number_one/thesaurus/synonyms (accessed September 29, 2026). |
| Harvard | Smart Define 2016, number one thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/number_one/thesaurus/synonyms>. |
| MLA | Smart Define. "number one thesaurus" 29 March 2016. Web. 29 September 2026. <https://smartdefine.org/number_one/thesaurus/synonyms> |