242 entries under tough topic. ×
| prosperous(fit, active, healthy, well) | |
| red-blooded(adjective, energetic, powerful, lively) | |
| reliable(adjective, calm, sound, reasonable) | |
| serious(adjective, hard, firm, solid) | |
| spanking(adjective, great, energetic, powerful) | |
| strict(adjective, hard, severe, flat) | |
| thick(adjective, person, body, hard) | |
| unswerving(adjective, firm, determined, steady) | |
| adamantine(adjective, set, hard, firm) | |
| authoritarian(adjective, hard, energetic, powerful) | |
| dauntless(adjective, active, noble, bold) | |
| exuberant(adjective, energetic, enthusiastic, powerful) | |
| fiery(adjective, severe, sharp, difficult) | |
| hale and hearty(expression, adjective, idiom, force, power) | |
| immovable(adjective, hard, secure, solid) | |
| in fine fettle(expression, adjective, idiom, sound) | |
| inflexible(adjective, set, hard, flat) | |
| rigorous(adjective, hard, severe, sturdy) | |
| safe and sound(expression, adjective, idiom, person) | |
| steely(adjective, hard, sturdy, rigid) |
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| APA | Smart Define. (2016). strong thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/strong/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "strong thesaurus" https://smartdefine.org/strong/thesaurus/synonyms (accessed September 28, 2026). |
| Harvard | Smart Define 2016, strong thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/strong/thesaurus/synonyms>. |
| MLA | Smart Define. "strong thesaurus" 1 April 2016. Web. 28 September 2026. <https://smartdefine.org/strong/thesaurus/synonyms> |