123 entries under important topic. ×

16
considerable(adjective, importance, big, heavy)
16
influential(adjective, importance, powerful, valuable)
15
impressive(adjective, bad, strong, great, excellent)
15
outstanding(adjective, excellent, extraordinary, superior, importance)
14
historic(adjective, importance, main, extremely significant)
13
noteworthy(adjective, great, solid, extraordinary, big)
12
meaningful(adjective, good, clear, strong, great)
11
eventful(adjective, bad, great, excellent, extraordinary)
11
signal(adjective, great, solid, extraordinary, importance)
10
decisive(adjective, great, extraordinary, big)
10
earnest(adjective, importance, valuable, main)
9
chief(adjective, bad, great, excellent, superior)
9
prominent(adjective, good, strong, solid, extraordinary)
8
newsworthy(adjective, importance, valuable, main)
7
leading(adjective, feature, state, characteristic, good)
7
principal(adjective, good, bad, great, excellent)
7
special(adjective, bad, great, excellent, superior)
7
urgent(adjective, clear, tough, severe, big)
6
capital(adjective, bad, great, excellent)
6
earthshaking
10 years ago|15k views|share |citing 
APASmart Define. (2016). momentous thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/momentous/thesaurus/synonyms
ChicagoSmart Define. 2016. "momentous thesaurus" https://smartdefine.org/momentous/thesaurus/synonyms (accessed September 30, 2026).
HarvardSmart Define 2016, momentous thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/momentous/thesaurus/synonyms>.
MLASmart Define. "momentous thesaurus" 1 April 2016. Web. 30 September 2026. <https://smartdefine.org/momentous/thesaurus/synonyms>