Synonyms|861Antonyms|138|Broader|14Narrower|0Related|399

53 entries under fundamental topic. ×

5
decisive(adjective, big, important, significant, substantial)
5
requirement(noun, form, order, charge, fix)
4
basic(noun, adjective, important, significant, essential)
3
demand(noun, verb, order, charge, concern)
3
momentous(adjective, big, important, determined, significant)
3
necessitous(important, capital, essential, vital)
2
central(adjective, important, significant, critical, vital)
2
de rigueur(expression, adjective, significant, essential, basic)
2
integral(important, essential, critical, basic)
2
life-or-death(adjective, important, essential, critical, basic)
2
principal(adjective, big, important, significant, substantial)
2
significant(adjective, big, important, determined, substantial)
1
all-important(adjective, important, significant, serious, essential)
1
bottom-line(adjective, important, significant, essential, critical)
1
call(noun, order, charge, rule, demand)
1
cardinal(adjective, important, significant, capital, essential)
1
chief(adjective, big, important, significant, substantial)
1
coal-and-ice(important, essential, critical, basic)
1
exaction(noun, order, charge, concern, rule)
1
expedient(adjective, significant, essential, basic, vital)
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APASmart Define. (2015). imperative thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/imperative/thesaurus/synonyms
ChicagoSmart Define. 2015. "imperative thesaurus" https://smartdefine.org/imperative/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2015, imperative thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/imperative/thesaurus/synonyms>.
MLASmart Define. "imperative thesaurus" 10 April 2015. Web. 27 September 2026. <https://smartdefine.org/imperative/thesaurus/synonyms>