138 entries under sturdy topic. ×

8
wicked(adjective, clear, bad, strong, cool)
7
dense(adjective, person, set, body, strong)
7
hard-bitten(adjective, strong, hard, continue, rough)
7
hearty(adjective, person, body, strong, sound)
7
inexorable(adjective, mean, strong, hard, firm)
6
authoritarian(noun, adjective, strong, hard, severe)
6
constant(adjective, calm, strong, secure, firm)
6
enduring(adjective, calm, strong, sound, fit)
6
fit(adjective, strong, fresh, healthy, well)
6
grim(adjective, strong, hard, severe, firm)
6
hale(adjective, strong, sound, fit, firm)
6
implacable(adjective, mean, strong, hard, firm)
6
lusty(adjective, strong, fit, firm, solid)
6
vital(adjective, strong, intense, energetic, important)
5
able-bodied(adjective, person, body, strong, fresh)
5
bullheaded(adjective, strong, hard, firm, difficult)
5
cohesive(adjective, strong, coherence)
5
dependable(adjective, strong, determined, careful, resolute)
5
energetic(adjective, strong, sound, smart, heavy)
5
indomitable(adjective, strong, hard, great, difficult)
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APASmart Define. (2016). tough thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/tough/thesaurus/synonyms
ChicagoSmart Define. 2016. "tough thesaurus" https://smartdefine.org/tough/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2016, tough thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/tough/thesaurus/synonyms>.
MLASmart Define. "tough thesaurus" 30 March 2016. Web. 29 September 2026. <https://smartdefine.org/tough/thesaurus/synonyms>