323 entries under adjective topic. ×

48
important(good, bad, strong, great)
41
consequential(good, clear, importance, big)
39
significant(good, clear, strong, great)
35
weighty(good, clear, strong, tough)
31
remarkable(extraordinary, importance, important, lively)
30
serious(good, great, severe, extraordinary)
28
grave(importance, important, valuable, main)
25
crucial(great, tough, severe, extraordinary)
24
vital(severe, importance, big, heavy)
22
notable(solid, extraordinary, importance, unusual)
22
pivotal(feature, state, characteristic, important)
21
essential(feature, state, characteristic, importance)
20
memorable(great, extraordinary, superior, importance)
20
substantial(strong, importance, big, heavy)
19
critical(great, severe, extraordinary, big)
19
major(bad, great, tough, severe)
18
fateful(importance, important, significant, valuable)
18
material(noun, good, importance, big)
17
big(good, importance, heavy, important)
17
great(bad, excellent, importance, important)
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APASmart Define. (2016). momentous thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/momentous/thesaurus/synonyms
ChicagoSmart Define. 2016. "momentous thesaurus" https://smartdefine.org/momentous/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2016, momentous thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/momentous/thesaurus/synonyms>.
MLASmart Define. "momentous thesaurus" 1 April 2016. Web. 29 September 2026. <https://smartdefine.org/momentous/thesaurus/synonyms>