1
huge
1
illustrious
1
immense
1
imperative
1
impressive
1
incalculable
1
influential
1
leading
1
massive
1
measurable
1
monumental
1
noteworthy
1
outstanding
1
paramount
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premier
1
pressing
1
prestigious
1
priceless(adjective, worthless, invaluable, inestimable)
1
prime
1
prominent
11 years ago|3.3k views|share |citing 
APASmart Define. (2015). negligible thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/negligible/thesaurus/antonyms
ChicagoSmart Define. 2015. "negligible thesaurus" https://smartdefine.org/negligible/thesaurus/antonyms (accessed September 30, 2026).
HarvardSmart Define 2015, negligible thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/negligible/thesaurus/antonyms>.
MLASmart Define. "negligible thesaurus" 14 April 2015. Web. 30 September 2026. <https://smartdefine.org/negligible/thesaurus/antonyms>