Synonyms|413Antonyms|112|Broader|7Narrower|11Related|520
1
incumbent on(expression, adjective, significant, essential, basic)
1
indicated
1
indulged(verb, obliged)
1
inflicted
1
ingested
1
inquired
1
insufficience(noun, loss, shortage, discrepancy, deficit)
1
interdicted
1
invited
1
involved
1
irreducible
1
irreductible
1
irreplaceable
1
key(important, essential, critical, basic, fundamental)
1
leased
1
levied
1
life-and-death
1
life-or-death(adjective, important, essential, critical, basic)
1
locked up(expression, obvious, inevitable, inescapable)
1
looked
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ChicagoSmart Define. 2015. "required thesaurus" https://smartdefine.org/required/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, required thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/required/thesaurus/synonyms>.
MLASmart Define. "required thesaurus" 3 November 2015. Web. 21 September 2026. <https://smartdefine.org/required/thesaurus/synonyms>