337 entries under adjective topic. ×
| fundamental(noun, body, material, important) | |
| organic(important, significant, natural, animate) | |
| pre-eminent | |
| predominant(bad, great, excellent, extraordinary) | |
| basic(body, material, important, significant) | |
| lead(noun, person, advance, start) | |
| premier(order, top, excellent, lead) | |
| central(lead, important, head, significant) | |
| prominent(good, important, wonderful, famous) | |
| supreme(order, bad, tough, top) | |
| arch(noun, order, top, lead) | |
| highest(order, bad, tough, top) | |
| outstanding(bad, great, tough, top) | |
| prevailing(important, usual, best, key) | |
| sovereign(noun, excellent, superior, important) | |
| uppermost(excellent, lead, important, rank) | |
| executive(noun, rank, master, post) | |
| overriding(serious, basic, prime, supreme) | |
| vital(body, great, importance, material) | |
| elementary(important, significant, original, essential) |
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| APA | Smart Define. (2016). principal thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/principal/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "principal thesaurus" https://smartdefine.org/principal/thesaurus/synonyms (accessed September 26, 2026). |
| Harvard | Smart Define 2016, principal thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/principal/thesaurus/synonyms>. |
| MLA | Smart Define. "principal thesaurus" 29 March 2016. Web. 26 September 2026. <https://smartdefine.org/principal/thesaurus/synonyms> |