123 entries under important topic. ×

1
chips are down(expression, adjective, idiom, significant)
1
deep(adjective, tough, severe, intense)
1
doozie(big, outstanding, significant, substantial)
1
dynamite(big, significant, substantial, large)
1
eloquent(adjective, intense, powerful, significant)
1
excellent(adjective, bad, great, superior)
1
fab(big, significant, substantial, large)
1
far-out(adjective, bad, great, excellent, superior)
1
fat(big, heavy, significant, substantial)
1
foremost(adjective, significant, essential, vital)
1
front-page(big, significant, substantial, valuable)
1
grievous(adjective, tough, severe, heavy)
1
heavy number(expression, adjective, significant, historic)
1
hundred-proof(adjective, bad, great, excellent, superior)
1
indispensable(adjective, significant, substantial, serious)
1
life and death(expression, idiom, big, heavy)
1
mondo(big, significant, substantial, large)
1
mostest(adjective, bad, great, excellent, superior)
1
out-of-sight(adjective, bad, great, excellent, superior)
1
out-of-this-world(adjective, bad, great, excellent, superior)
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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>