197 entries under important topic. ×

1
meat-and-potatoes(significant, original, essential, critical)
1
memorable(adjective, lively, outstanding, significant)
1
monumental(great, extraordinary, outstanding, notable)
1
name(essential, critical, fundamental, imperative)
1
name-of-the-game(essential, critical, basic, fundamental)
1
necessitous(capital, essential, vital, fundamental)
1
nitty-gritty(adjective, original, essential, critical)
1
of moment(expression, big, significant, substantial)
1
ominous(adjective, heavy, significant, acute)
1
operative(adjective, powerful, active, useful)
1
powerful(adjective, prominent, effective, valid)
1
prerequisite(adjective, significant, capital, essential)
1
quintessential(adjective, significant, essential, basic)
1
real
1
searching(adjective, critical)
1
special(key, chief, foremost)
1
structural(significant, original, basic, vital)
1
substratal(adjective, significant, original, essential)
1
substrative(significant, original, basic, vital)
1
supporting(significant, original, basic, vital)
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APASmart Define. (2016). crucial thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/crucial/thesaurus/synonyms
ChicagoSmart Define. 2016. "crucial thesaurus" https://smartdefine.org/crucial/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2016, crucial thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/crucial/thesaurus/synonyms>.
MLASmart Define. "crucial thesaurus" 11 March 2016. Web. 29 September 2026. <https://smartdefine.org/crucial/thesaurus/synonyms>