Synonyms|1kAntonyms|247|Broader|9Narrower|1Related|1.2k

176 entries under significant topic. ×

1
main(vital, chief, striking, principal)
1
marked(solid, extraordinary, unusual, powerful)
1
mattering much(expression, big, substantial, valuable)
1
mondo(big, important, substantial, large)
1
noticeable(solid, extraordinary, unusual, wonderful)
1
of moment(expression, big, important, substantial)
1
of note(expression, idiom, importance, big)
1
of substance(expression, big, substantial, valuable)
1
paramount(strong, energetic, important, essential)
1
pat(important, consistent, related, applicable)
1
perilous(adjective, heavy, serious, vital)
1
pertaining to(expression, important, consistent, related)
1
pertinent(striking, forceful, noticeable, persuasive)
1
plentiful(substantial, large, considerable)
1
pointful(important, substantial, serious, consistent)
1
primary(big, important, substantial, serious)
1
referring(important, consistent, related, applicable)
1
related(important, applicable, germane, pertinent)
1
relative(important, consistent, related, applicable)
1
sententious(adjective, severe, sharp, expressive)
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HarvardSmart Define 2015, weighty thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/weighty/thesaurus/synonyms>.
MLASmart Define. "weighty thesaurus" 14 April 2015. Web. 27 September 2026. <https://smartdefine.org/weighty/thesaurus/synonyms>