307 entries under strong topic. ×

1
efficacious(energetic, powerful, vigorous, capable)
1
efficient(adjective, tough, intense, energetic)
1
enterprising(adjective, tough, intense, energetic)
1
equable(adjective, calm, secure, firm)
1
even(adjective, calm, secure, firm)
1
exuberant(adjective, tough, intense, energetic)
1
fit as fiddle(expression, idiom, tough, fit)
1
fixed resistant(expression, calm, solid, substantial)
1
full of life(expression, tough, fit, fresh)
1
hard-driving(adjective, tough, intense, energetic)
1
hard-line(adjective, hard, tough, rugged)
1
hardened(hard, tough, fit, solid)
1
healthful(tough, fit, fresh, well)
1
high-powered(adjective, moving, lively, active)
1
hulk(adjective, hard, substantial, compact)
1
hulky(vigorous, robust, stout, brawny)
1
hunk(adjective, hard, substantial, compact)
1
in fine feather(expression, adjective, idiom, sound)
1
in good health(expression, adjective, idiom, tough)
1
in the pink(expression, adjective, idiom, tough)
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APASmart Define. (2016). sturdy thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/sturdy/thesaurus/synonyms
ChicagoSmart Define. 2016. "sturdy thesaurus" https://smartdefine.org/sturdy/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2016, sturdy thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/sturdy/thesaurus/synonyms>.
MLASmart Define. "sturdy thesaurus" 24 March 2016. Web. 27 September 2026. <https://smartdefine.org/sturdy/thesaurus/synonyms>