| special(chief, foremost) | |
| controlling(outstanding, prominent, prime, chief) | |
| essential(outstanding, prominent, prime, chief) | |
| greatest(adjective, quality, superior, important, outstanding) | |
| head(adjective, important, outstanding, prominent, prime) | |
| premier(adjective, important, outstanding, prominent, prime) | |
| prominent(adjective, top, superior, important, outstanding) | |
| core(chief, foremost) | |
| critical(great, important, serious, chief) | |
| fundamental(chief, foremost) | |
| necessary(chief, foremost) | |
| particular(chief, foremost) | |
| vital(great, important, serious, chief) | |
| crucial(great, important, serious, chief) |
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| APA | Smart Define. (2016). stellar thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/stellar/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "stellar thesaurus" https://smartdefine.org/stellar/thesaurus/synonyms (accessed September 22, 2026). |
| Harvard | Smart Define 2016, stellar thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/stellar/thesaurus/synonyms>. |
| MLA | Smart Define. "stellar thesaurus" 29 March 2016. Web. 22 September 2026. <https://smartdefine.org/stellar/thesaurus/synonyms> |