Synonyms|100Antonyms|46|Broader|1Narrower|0Related|205
4
powerful(adjective, strong, sound, tough, solid)
4
strong(adjective, powerful, healthy)
3
big(adjective, strong, great, sound, tough)
3
durable(adjective, strong, sound, tough, solid)
3
substantial(adjective, strong, great, sound, tough)
2
gargantuan
2
heavy(adjective, strong, sound, tough, solid)
2
solid(adjective, strong, sound, tough, heavy)
2
sturdy(adjective, strong, sound, tough, solid)
2
tough
2
well-built(adjective, strong, sound, tough, solid)
1
able(adjective, strong, sound, tough, solid)
1
able-bodied(adjective, strong, sound, tough, solid)
1
active(adjective, strong, sound, tough, solid)
1
athletic(adjective, strong, sound, tough, solid)
1
capable(adjective, strong, sound, tough, solid)
1
deep
1
enduring(adjective, strong, sound, tough, solid)
1
energetic(adjective, strong, sound, tough, solid)
1
firm
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APASmart Define. (2013). heavy-duty thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/heavy-duty/thesaurus/synonyms
ChicagoSmart Define. 2013. "heavy-duty thesaurus" https://smartdefine.org/heavy-duty/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2013, heavy-duty thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/heavy-duty/thesaurus/synonyms>.
MLASmart Define. "heavy-duty thesaurus" 28 June 2013. Web. 21 September 2026. <https://smartdefine.org/heavy-duty/thesaurus/synonyms>