Synonyms|527Antonyms|111|Broader|20Narrower|54Related|356

87 entries under adjective topic. ×

2
imperative(essential, prime, main, necessary)
1
consequential(important, essential, main, chief)
1
constitutive(important, significant, substantial, essential)
1
critical(main, principal, predominant)
1
elementary(original, primary, initial, pristine)
1
inherent(base, basic, key, main)
1
intrinsic(base, basic, key, main)
1
momentous(important, essential, main, chief)
1
pivotal(base, basic, key, main)
1
preeminent(important, essential, main, chief)
1
primordial(base, basic, key, main)
1
substantial(base, basic, key, main)
1
uppermost(important, essential, main, chief)
1
weighty(important, essential, main, chief)
1
arch(important, essential, main, chief)
1
champion(important, essential, main, chief)
1
effective(important, essential, main, chief)
1
especial(important, essential, main, chief)
1
grand(important, essential, main, chief)
1
highest(important, essential, main, chief)
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APASmart Define. (2015). ancillary thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/ancillary/thesaurus/antonyms
ChicagoSmart Define. 2015. "ancillary thesaurus" https://smartdefine.org/ancillary/thesaurus/antonyms (accessed September 26, 2026).
HarvardSmart Define 2015, ancillary thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/ancillary/thesaurus/antonyms>.
MLASmart Define. "ancillary thesaurus" 10 April 2015. Web. 26 September 2026. <https://smartdefine.org/ancillary/thesaurus/antonyms>