58 entries under strong topic. ×
| concentrated(verb, adjective, set, hard) | |
| dense(adjective, set, hard, tough) | |
| enduring(fit, familiar, healthy, well) | |
| hard as nails(expression, adjective, idiom, set) | |
| healthy(fit, well, robust, resilient) | |
| impenetrable(adjective, set, hard, tough) | |
| in fine fettle(expression, idiom, fit, healthy) | |
| in good condition(expression, idiom, fit, healthy) | |
| in good shape(expression, idiom, fit, healthy) | |
| lusty(fit, healthy, well, robust) | |
| mighty(fit, healthy, well, robust) | |
| physically fit(expression, fit, healthy, well) | |
| robust(fit, healthy, well, resilient) | |
| stalwart(fit, healthy, well, robust) | |
| stout(fit, healthy, well, robust) | |
| sturdy(hard, tough, fit, solid) | |
| substantial(hard, fit, solid, healthy) | |
| tenacious(fit, determined, healthy, well) | |
| tight(adjective, hard, firm, solid) | |
| vigorous(fit, healthy, well, robust) |
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| APA | Smart Define. (2016). hardened thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/hardened/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "hardened thesaurus" https://smartdefine.org/hardened/thesaurus/synonyms (accessed September 26, 2026). |
| Harvard | Smart Define 2016, hardened thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/hardened/thesaurus/synonyms>. |
| MLA | Smart Define. "hardened thesaurus" 29 March 2016. Web. 26 September 2026. <https://smartdefine.org/hardened/thesaurus/synonyms> |