328 entries under strong topic. ×
| rigorous(adjective, hard, severe, rough) | |
| staunch(adjective, calm, clear, sound) | |
| unrelenting(adjective, mean, hard, severe) | |
| cool(adjective, calm, mean, bad) | |
| mighty(adjective, person, body, great) | |
| steady(adjective, calm, sound, heavy) | |
| athletic(adjective, person, body, sound) | |
| austere(adjective, hard, severe, sharp) | |
| hard-line(adjective, characteristic, hard, rough) | |
| healthy(adjective, fit, condition, intense) | |
| resistant(adjective, hard, fit, firm) | |
| spunky(adjective, firm, lively, determined) | |
| stable(adjective, sound, firm, heavy) | |
| toughened(noun, adjective, hard, careless) | |
| unsparing(adjective, hard, severe, rough) | |
| wicked(adjective, clear, bad, cool) | |
| daredevil(noun, bad, temper, noble) | |
| dense(adjective, person, set, body) | |
| hard-bitten(adjective, hard, continue, rough) | |
| hearty(adjective, person, body, sound) |
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| APA | Smart Define. (2016). tough thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/tough/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "tough thesaurus" https://smartdefine.org/tough/thesaurus/synonyms (accessed September 29, 2026). |
| Harvard | Smart Define 2016, tough thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/tough/thesaurus/synonyms>. |
| MLA | Smart Define. "tough thesaurus" 30 March 2016. Web. 29 September 2026. <https://smartdefine.org/tough/thesaurus/synonyms> |