112 entries under big topic. ×

7
staid(adjective, dull, set, severe, honest)
6
cumbrous(adjective, heavy, awkward, substantial)
6
dense(adjective, heavy, substantial)
6
forcible(adjective, clear, strong, energetic)
6
huge(adjective, heavy, significant, awkward)
6
pregnant(adjective, significant, awkward, substantial)
6
somber(adjective, dull, severe, honest, sad)
5
no-nonsense(adjective, dull, severe, honest, dark)
5
noteworthy(adjective, solid, extraordinary, unusual)
4
chief(adjective, important, significant, substantial)
4
porcine(adjective, solid, heavy, awkward)
3
beefy(adjective, heavy, awkward, substantial)
3
elephantine(adjective, heavy, awkward, substantial)
3
necessary(important, significant, substantial, valuable)
2
ample(adjective, heavy, awkward, substantial)
2
brawny(adjective, strong, heavy, powerful)
2
broad(adjective, heavy, round, stout)
2
chunky(adjective, heavy, awkward, substantial)
2
distinguished(unusual, important, wonderful, significant)
2
exceptional(adjective, extraordinary, unusual, significant)
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APASmart Define. (2015). weighty thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/weighty/thesaurus/synonyms
ChicagoSmart Define. 2015. "weighty thesaurus" https://smartdefine.org/weighty/thesaurus/synonyms (accessed September 27, 2026).
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>