16
significant(adjective, great, importance, big, heavy)
15
integral(adjective, body, importance, material, important)
15
weighty(adjective, great, severe, importance, big)
14
animated(adjective, strong, energetic, lively, ready)
14
active(adjective, good, clear, strong, tough)
14
constitutive(adjective, importance, valuable, essential, surface)
14
main(adjective, top, importance, important, significant)
14
pivotal(adjective, important, significant, serious, critical)
13
fresh(adjective, healthy, person, energy, energetic)
13
impressive(adjective, importance, powerful, valuable, main)
12
consequential(adjective, importance, heavy, important, significant)
12
substantial(adjective, importance, important, valuable, main)
11
alive(adjective, adverb, sharp, energetic, active)
11
dynamic(adjective, strong, tough, energetic, powerful)
11
required(adjective, important, significant, serious, essential)
11
spirited(adjective, strong, tough, energetic, powerful)
11
brisk(adjective, strong, tough, pleasant, intense)
11
cardinal(adjective, importance, important, significant, original)
11
live(adjective, body, strong, tough, rough)
11
pressing(adjective, big, heavy, important, significant)
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APASmart Define. (2015). vital thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/vital/thesaurus/synonyms
ChicagoSmart Define. 2015. "vital thesaurus" https://smartdefine.org/vital/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, vital thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/vital/thesaurus/synonyms>.
MLASmart Define. "vital thesaurus" 2 November 2015. Web. 24 September 2026. <https://smartdefine.org/vital/thesaurus/synonyms>