140 entries under tough topic. ×

1
persuasive(adjective, strong, direct, energetic)
1
proficient(adjective, smooth, smart, skill)
1
reinforced(adjective, strong, sound, solid)
1
restored(adjective, good, clear, strong)
1
rugged(adjective, strong, sound, energetic)
1
saving(energetic, effective, adept, effectual)
1
secure(adjective, strong, sound, solid)
1
shrewd(energetic, effective, adept, effectual)
1
skilled(adjective, smooth, energetic, quick)
1
skillful(adjective, smooth, keen, sharp)
1
stable(adjective, strong, sound, solid)
1
stark(adjective, strong, sound, solid)
1
staunch(adjective, strong, sound, fit)
1
steady(adjective, strong, sound, solid)
1
steamroller(adjective, strong, energetic, powerful)
1
stout(adjective, strong, sound, fit)
1
strapping(adjective, strong, sound, fit)
1
strong as an ox(expression, adjective, idiom, strong)
1
systematic(energetic, effective, adept, effectual)
1
talented(practical, effective, ingenious, adept)
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APASmart Define. (2016). active thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/active/thesaurus/synonyms
ChicagoSmart Define. 2016. "active thesaurus" https://smartdefine.org/active/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2016, active thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/active/thesaurus/synonyms>.
MLASmart Define. "active thesaurus" 24 March 2016. Web. 25 September 2026. <https://smartdefine.org/active/thesaurus/synonyms>