2
staid(big, heavy, substantial)
2
standout(adjective, bad, great, excellent, extraordinary)
2
super(adjective, good, bad, great, extraordinary)
2
superior(adjective, bad, great, excellent, unusual)
2
valuable(adjective, big, significant, substantial, large)
1
active
1
abundant(significant, substantial, large, considerable)
1
accountable(adjective, valuable, duty, reliable, responsible)
1
ace(adjective, bad, great, excellent, superior)
1
acute(adjective, heavy, important, significant, serious)
1
adult
1
all-important(adjective, significant, serious, essential, critical)
1
amenable(adjective, valuable, duty, reliable, responsible)
1
answerable(adjective, valuable, duty, reliable, responsible)
1
arresting(adjective, solid, intense, extraordinary, unusual)
1
arrestive(adjective, solid, extraordinary, unusual, strange)
1
ascendant
1
august
1
authorised
1
authoritarian
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>