6
forceful(adjective, strong, great, sound, tough)
6
forcible(adjective, strong, sound, strength, tough)
6
heavy(adjective, person, body, strong, hard)
6
inflexible(adjective, close, strong, hard, tough)
6
iron(adjective, strong)
5
dependable(adjective, strong, tough, firm, solid)
5
enduring(adjective, calm, strong, sound, secure)
5
flourishing(adjective, strong, tough, fit, solid)
5
formidable(adjective, strong, prevailing, influential, commanding)
5
masculine
5
massive(adjective, person, body, strong, powerful)
5
persevering
5
puissant(adjective, strong, sound, strength, energetic)
5
red-blooded(adjective, strong, tough, intense, energetic)
5
rigid(adjective, close, set, strong, hard)
5
unfaltering(adjective, firm, solid, determined, stable)
5
unshakable(adjective, strong, hard, tough, continue)
5
virile(adjective, strong, tough, fit, fresh)
5
well-constructed(complete, solid, vigorous)
4
bouncing(adjective, strong, tough, intense, energetic)
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APASmart Define. (2016). sturdy thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/sturdy/thesaurus/synonyms
ChicagoSmart Define. 2016. "sturdy thesaurus" https://smartdefine.org/sturdy/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2016, sturdy thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/sturdy/thesaurus/synonyms>.
MLASmart Define. "sturdy thesaurus" 24 March 2016. Web. 23 September 2026. <https://smartdefine.org/sturdy/thesaurus/synonyms>