42 entries under solid topic. ×

1
healthy(adjective, heavy, important, powerful)
1
hearty(adjective, strong, sound, tough)
1
in fine feather(expression, adjective, idiom, strong, sound)
1
mighty(adjective, strong, sound, tough)
1
muscular(adjective, strong, sound, tough)
1
reinforced(adjective, strong, sound, tough)
1
robust(adjective, strong, sound, tough)
1
secure(adjective, strong, sound, tough)
1
sinewy(adjective, strong, sound, tough)
1
sound(adjective, strong, tough, heavy)
1
stable(adjective, strong, sound, tough)
1
stalwart(adjective, strong, sound, tough)
1
stark(adjective, strong, sound, tough)
1
staunch(adjective, strong, sound, tough)
1
steady(adjective, strong, sound, tough)
1
stout(adjective, strong, sound, tough)
1
strapping(adjective, strong, great, sound, tough)
1
tenacious(adjective, strong, sound, tough)
1
unyielding(adjective, strong, sound, tough)
1
vigorous(adjective, strong, sound, tough)
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APASmart Define. (2013). heavy-duty thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/heavy-duty/thesaurus/synonyms
ChicagoSmart Define. 2013. "heavy-duty thesaurus" https://smartdefine.org/heavy-duty/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2013, heavy-duty thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/heavy-duty/thesaurus/synonyms>.
MLASmart Define. "heavy-duty thesaurus" 28 June 2013. Web. 28 September 2026. <https://smartdefine.org/heavy-duty/thesaurus/synonyms>