208 entries under tough topic. ×

7
unswerving(adjective, strong, firm, solid)
7
vital(adjective, strong, complete, solid)
7
well(adjective, person, strong, complete)
7
well-made(adjective, strong, sound, solid)
6
adamantine(adjective, strong, hard, strength)
6
big(adjective, person, body, strong, sound)
6
energetic(adjective, strong, sound, fit)
6
fit(adjective, strong, complete, solid)
6
forceful(adjective, strong, great, sound)
6
forcible(adjective, strong, sound, strength)
6
heavy(adjective, person, body, strong, hard)
6
inflexible(adjective, close, strong, hard)
5
dependable(adjective, strong, firm, solid)
5
enduring(adjective, calm, strong, sound, secure)
5
flourishing(adjective, strong, fit, solid)
5
red-blooded(adjective, strong, intense, energetic)
5
rigid(adjective, close, set, strong, hard)
5
unshakable(adjective, strong, hard, continue)
5
virile(adjective, strong, fit, fresh)
4
bouncing(adjective, strong, intense, energetic)
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APASmart Define. (2016). sturdy thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/sturdy/thesaurus/synonyms
ChicagoSmart Define. 2016. "sturdy thesaurus" https://smartdefine.org/sturdy/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2016, sturdy thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/sturdy/thesaurus/synonyms>.
MLASmart Define. "sturdy thesaurus" 24 March 2016. Web. 29 September 2026. <https://smartdefine.org/sturdy/thesaurus/synonyms>