61 entries under imperative topic. ×

48
important(adjective, good, bad, strong, great)
39
significant(adjective, good, clear, strong, great)
35
weighty(adjective, good, clear, strong, tough)
30
serious(adjective, good, great, severe, extraordinary)
25
crucial(adjective, great, tough, severe, extraordinary)
24
vital(adjective, severe, importance, big, heavy)
21
essential(adjective, feature, state, characteristic, importance)
20
substantial(adjective, strong, importance, big, heavy)
19
critical(adjective, great, severe, extraordinary, big)
18
material(noun, adjective, good, importance, big)
17
big(adjective, good, importance, heavy, important)
17
great(adjective, bad, excellent, importance, important)
16
considerable(adjective, importance, big, heavy, important)
12
meaningful(adjective, good, clear, strong, great)
11
signal(adjective, great, solid, extraordinary, importance)
10
decisive(adjective, great, extraordinary, big, important)
9
chief(adjective, bad, great, excellent, superior)
7
principal(adjective, good, bad, great, excellent)
7
relevant(adjective, clear, importance, big, significant)
7
urgent(adjective, clear, tough, severe, big)
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>