Synonyms|762Antonyms|320|Broader|3Narrower|1Related|1.6k

120 entries under substantial topic. ×

1
hulk(adjective, strong, hard, sturdy)
1
hunk(adjective, strong, hard, sturdy)
1
massed(adjective, strong, hard, sturdy)
1
material(adjective, strong, hard, solid, big)
1
mondo(significant, large)
1
physical(adjective, strong, hard, sturdy)
1
plentiful(great, big, significant, large)
1
porcine(adjective, solid, big, heavy, awkward)
1
rock(adjective, strong, hard, sturdy)
1
rocklike(adjective, strong, hard, sturdy)
1
rooted(adjective, strong, hard, sturdy)
1
secure(adjective, strong, hard, solid)
1
set(adjective, strong, hard, sturdy)
1
significant(big, heavy, large, considerable)
1
spacious(great, big, large, huge)
1
stable(adjective, strong, hard, solid, big)
1
unshakable(adjective, strong, hard, determined)
1
whopping(great, big, generous, huge)
1
zaftig(solid, heavy, awkward, stout)
0
appreciable(significant, large)
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ChicagoSmart Define. 2015. "hefty thesaurus" https://smartdefine.org/hefty/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, hefty thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/hefty/thesaurus/synonyms>.
MLASmart Define. "hefty thesaurus" 17 July 2015. Web. 22 September 2026. <https://smartdefine.org/hefty/thesaurus/synonyms>