105 entries under tough topic. ×

1
fixed(adjective, set, strong, sound)
1
forceful(adjective, strong, direct, sound)
1
forcible(adjective, strong, direct, sound)
1
good at(expression, energetic, effective, adept)
1
good for(expression, energetic, effective, adept)
1
hard as nails(expression, adjective, idiom, strong, sound)
1
hearty(adjective, strong, sound, fit)
1
heavy(adjective, good, bad, strong, sound)
1
heavy-duty(adjective, strong, sound, solid)
1
in fine feather(expression, adjective, idiom, strong, sound)
1
muscular(adjective, strong, sound, fit)
1
organized(set, energetic, ready, effective)
1
out-and-out(adjective, good, bad, complete)
1
perfect(adjective, good, bad, complete)
1
positive(adjective, good, bad, complete)
1
profitable(energetic, effective, adept, effectual)
1
reinforced(adjective, strong, sound, solid)
1
robust(adjective, strong, sound, fit)
1
saving(energetic, effective, adept, effectual)
1
sinewy(adjective, strong, sound, fit)
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APASmart Define. (2016). able thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/able/thesaurus/synonyms
ChicagoSmart Define. 2016. "able thesaurus" https://smartdefine.org/able/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2016, able thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/able/thesaurus/synonyms>.
MLASmart Define. "able thesaurus" 14 March 2016. Web. 25 September 2026. <https://smartdefine.org/able/thesaurus/synonyms>