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

119 entries under substantial topic. ×

7
major(adjective, great, tough, severe, heavy)
7
sedate(adjective, dull, severe, honest, dark)
7
staid(adjective, dull, set, severe, honest)
6
cumbrous(adjective, big, heavy, awkward)
6
dense(adjective, big, heavy)
6
forcible(adjective, clear, strong, energetic, big)
6
huge(adjective, big, heavy, significant, awkward)
6
pregnant(adjective, big, significant, awkward)
6
somber(adjective, dull, severe, honest, sad)
5
decisive(adjective, powerful, significant, serious)
5
no-nonsense(adjective, dull, severe, honest, dark)
5
noteworthy(adjective, solid, extraordinary, big, unusual)
5
titanic(adjective, strong, energetic, violent, powerful)
4
chief(adjective, big, important, significant)
4
porcine(adjective, solid, big, heavy, awkward)
4
salient(adjective, sharp, extraordinary, importance, unusual)
3
beefy(adjective, big, heavy, awkward)
3
elephantine(adjective, big, heavy, awkward)
3
necessary(big, important, significant, valuable)
2
ample(adjective, big, heavy, awkward)
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ChicagoSmart Define. 2015. "weighty thesaurus" https://smartdefine.org/weighty/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, weighty thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/weighty/thesaurus/synonyms>.
MLASmart Define. "weighty thesaurus" 14 April 2015. Web. 26 September 2026. <https://smartdefine.org/weighty/thesaurus/synonyms>