98 entries under adjective topic. ×

2
chartered
2
chief(important, significant, serious, capital)
2
commanded
2
compulsatory(commanding, obligatory, authoritative, domineering)
2
constraining
2
decisive(important, significant, essential, critical)
2
enforced(verb, obligatory, compulsory, mandatory)
2
exigent(important, significant, serious, essential)
2
inescapable(obvious, inevitable)
2
inexorable(obvious, inevitable, inescapable)
2
of the essence(expression, idiom, essential, necessary)
2
prescribed
2
principal(important, significant, serious, capital)
2
regulation
2
unavoidable(certain, significant, essential, sure)
1
approved
1
bottom-line(important, significant, essential, critical)
1
coveted
1
elementary(significant, essential, basic, vital)
1
expedient(significant, essential, basic, vital)
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APASmart Define. (2015). required thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/required/thesaurus/synonyms
ChicagoSmart Define. 2015. "required thesaurus" https://smartdefine.org/required/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, required thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/required/thesaurus/synonyms>.
MLASmart Define. "required thesaurus" 3 November 2015. Web. 24 September 2026. <https://smartdefine.org/required/thesaurus/synonyms>