140 entries under tough topic. ×
| unyielding(adjective, strong, sound, solid) | |
| useful(energetic, effective, running, working) | |
| valuable(energetic, effective, adept, effectual) | |
| virtuous(energetic, effective, adept, effectual) | |
| well-built(adjective, strong, sound, solid) | |
| well-founded(adjective, strong, sound, solid) | |
| well-made(adjective, strong, sound, solid) | |
| well-organized(energetic, effective, adept, effectual) | |
| adapted(energetic, effective, adept, effectual) | |
| all right(expression, strong, fit, lively) | |
| fitted(effective, adept, effectual, well-organized) | |
| healthful(strong, fit, lively, fresh) | |
| husky(strong, fit, fresh, well) | |
| in the pink(expression, strong, fit, fresh) | |
| physically fit(expression, strong, fit, fresh) | |
| practiced(effective, adept, effectual, well-organized) | |
| qualified(effective, adept, effectual, well-organized) | |
| trim(strong, fit, lively, fresh) | |
| unimpaired(strong, fit, lively, fresh) | |
| whole(strong, fit, lively, fresh) |
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| APA | Smart Define. (2016). active thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/active/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "active thesaurus" https://smartdefine.org/active/thesaurus/synonyms (accessed September 25, 2026). |
| Harvard | Smart Define 2016, active thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/active/thesaurus/synonyms>. |
| MLA | Smart Define. "active thesaurus" 24 March 2016. Web. 25 September 2026. <https://smartdefine.org/active/thesaurus/synonyms> |