Synonyms|665Antonyms|174|Broader|10Narrower|15Related|812

65 entries under noun topic. ×

1
claim(need, essential, requirement, prerequisite)
1
compulsion(want, need, essential, certainty)
1
exigency(want, need, essential, certainty)
1
indispensability(need, essential, requirement, prerequisite)
1
inevitability(need, essential, requirement, prerequisite)
1
life or death(expression, idiom, need, essential)
1
needfulness(need, essential, requirement, prerequisite)
1
no alternative(expression, need, essential, requirement)
1
no choice(expression, need, essential, requirement)
1
obligation(want, need, essential, certainty)
1
right(adjective, want, essential, obligation)
1
undeniability(need, essential, requirement, prerequisite)
1
urgency(want, need, essential, certainty)
1
vital part(expression, need, essential, requirement)
1
vitals(need, essential, requirement, prerequisite)
0
appeal
0
charge(want, essential, obligation, requirement)
0
command
0
commitment(want, essential, obligation, requirement)
0
committal(want, essential, obligation, requirement)
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ChicagoSmart Define. 2015. "necessary thesaurus" https://smartdefine.org/necessary/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2015, necessary thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/necessary/thesaurus/synonyms>.
MLASmart Define. "necessary thesaurus" 2 November 2015. Web. 27 September 2026. <https://smartdefine.org/necessary/thesaurus/synonyms>