166 entries under tough topic. ×
| exuberant(adjective, strong, intense, energetic) | |
| hard as nails(expression, adjective, idiom, strong, hard) | |
| harsh(adjective, strong, hard, sturdy) | |
| heavy(adjective, person, body, strong, hard) | |
| in good health(expression, adjective, idiom, strong, great) | |
| severe(adjective, strong, hard, sturdy) | |
| spanking(adjective, strong, great, energetic) | |
| steely(adjective, strong, hard, sturdy) | |
| take-charge(adjective, strong, energetic, powerful) | |
| take-over(adjective, strong, intense, energetic) | |
| tenacious(adjective, strong, sound, secure) | |
| thick(adjective, person, body, strong, hard) | |
| unrelenting(adjective, strong, hard, sturdy) | |
| wicked(adjective, strong, fit, informal) | |
| bitter(adjective, strong, hard, sturdy) | |
| able(adjective, strong, sound, fit) | |
| astringent(adjective, strong, hard, sturdy) | |
| authoritarian(adjective, strong, hard, energetic) | |
| ball of fire(expression, adjective, idiom, strong, great) | |
| bright-eyed(strong, great, right, fit) |
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| APA | Smart Define. (2016). robust thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/robust/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "robust thesaurus" https://smartdefine.org/robust/thesaurus/synonyms (accessed September 27, 2026). |
| Harvard | Smart Define 2016, robust thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/robust/thesaurus/synonyms>. |
| MLA | Smart Define. "robust thesaurus" 24 March 2016. Web. 27 September 2026. <https://smartdefine.org/robust/thesaurus/synonyms> |