74 entries under vital topic. ×

50
important(adjective, bad, great, position, tough)
36
significant(adjective, great, position, tough, severe)
33
principal(adjective, bad, great, position, top)
27
main(adjective, bad, great, position, top)
23
chief(adjective, bad, great, top, excellent)
23
primary(adjective, good, top, lead, fine)
21
prime(adjective, lead, important, head, significant)
18
crucial(adjective, great, tough, severe, heavy)
14
leading(adjective, top, fine, superior, big)
14
momentous(adjective, bad, great, tough, severe)
11
key(adjective, lead, important, head, significant)
11
serious(adjective, great, unpleasant, heavy, important)
10
critical(adjective, great, heavy, important, significant)
10
paramount(adjective, good, fine, important, famous)
9
cardinal(adjective, lead, important, head, significant)
8
first(adjective, top, superior, unusual, important)
7
central(adjective, lead, important, head, significant)
6
essential(adjective, important, significant, original, substantial)
6
fundamental(adjective, important, significant, original, essential)
5
grievous(adjective, great, tough, severe, unpleasant)
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APASmart Define. (2015). major thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/major/thesaurus/synonyms
ChicagoSmart Define. 2015. "major thesaurus" https://smartdefine.org/major/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2015, major thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/major/thesaurus/synonyms>.
MLASmart Define. "major thesaurus" 6 July 2015. Web. 27 September 2026. <https://smartdefine.org/major/thesaurus/synonyms>