1
fixed(adjective, strong, sound, tough, solid)
1
forceful(adjective, strong, sound, tough, solid)
1
forcible(adjective, strong, sound, tough, solid)
1
great(fat, highpowered, mondo)
1
hale(adjective, strong, sound, tough, solid)
1
hard
1
hard-wearing
1
hard as nails(expression, adjective, idiom, strong, sound)
1
hardy(adjective, strong, sound, tough, solid)
1
healthy(adjective, solid, heavy, important, powerful)
1
hearty(adjective, strong, sound, tough, solid)
1
in fine feather(expression, adjective, idiom, strong, sound)
1
industrial
1
mighty(adjective, strong, sound, tough, solid)
1
mondo(fat, highpowered, tremendous)
1
muscular(adjective, strong, sound, tough, solid)
1
oversize(fat, highpowered, tremendous, mondo)
1
reinforced(adjective, strong, sound, tough, solid)
1
robust(adjective, strong, sound, tough, solid)
1
secure(adjective, strong, sound, tough, solid)
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APASmart Define. (2013). heavy-duty thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/heavy-duty/thesaurus/synonyms
ChicagoSmart Define. 2013. "heavy-duty thesaurus" https://smartdefine.org/heavy-duty/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2013, heavy-duty thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/heavy-duty/thesaurus/synonyms>.
MLASmart Define. "heavy-duty thesaurus" 28 June 2013. Web. 29 September 2026. <https://smartdefine.org/heavy-duty/thesaurus/synonyms>