166 entries under tough topic. ×
| enduring(adjective, strong, sound, strain) | |
| rigid(adjective, strong, hard, strain) | |
| steady(adjective, strong, sound, secure) | |
| unyielding(adjective, strong, hard, sound) | |
| mighty(adjective, person, body, strong, great) | |
| fit(adjective, strong, great, sound, complete) | |
| able-bodied(adjective, person, body, strong, great) | |
| athletic(adjective, person, body, strong, sound) | |
| lusty(adjective, strong, great, simple) | |
| energetic(adjective, strong, sound, fit) | |
| well(adjective, adverb, health, strong, sound) | |
| sinewy(adjective, strong, hard, sound) | |
| potent(adjective, strong, great, sound, strength) | |
| active(adjective, strong, sound, fit) | |
| solid(adjective, person, body, strong, sound) | |
| vital(adjective, strong, complete, fit) | |
| dynamic(adjective, strong, great, energetic) | |
| prosperous(adjective, characteristic, quality, strong) | |
| forceful(adjective, strong, great, sound) | |
| lively(adjective, strong, fit, energetic) |
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| APA | Smart Define. (2016). robust thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/robust/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "robust thesaurus" https://smartdefine.org/robust/thesaurus/synonyms (accessed September 25, 2026). |
| Harvard | Smart Define 2016, robust thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/robust/thesaurus/synonyms>. |
| MLA | Smart Define. "robust thesaurus" 24 March 2016. Web. 25 September 2026. <https://smartdefine.org/robust/thesaurus/synonyms> |