167 entries under sturdy topic. ×
| fibrous(adjective, hard, thin, solid, vigorous) | |
| immovable(adjective, hard, secure, tough, solid) | |
| in fine fettle(expression, adjective, idiom, sound, tough) | |
| inflexible(adjective, set, hard, tough, flat) | |
| invincible(adjective, power, strength, active, resolute) | |
| rigorous(adjective, hard, tough, severe) | |
| steely(adjective, hard, tough, rigid) | |
| thickset(adjective, person, body, solid, large) | |
| unbending(adjective, close, hard, tough, flat) | |
| abiding(calm, great, tough, solid, powerful) | |
| hard as nails(expression, adjective, idiom, hard, sound) | |
| adamant(adjective, hard, tough, flat, firm) | |
| cohesive(adjective, close, hard, tough, firm) | |
| concrete(adjective, set, hard, firm, substantial) | |
| fat(adjective, large, huge, robust) | |
| hard-nosed(adjective, hard, tough, determined, resolute) | |
| mean(adjective, determined, resolute, stout) | |
| obdurate(adjective, hard, tough, flat, firm) | |
| portly(force, energy, might, stout) | |
| seasoned(adjective, hard, sound, tough, sharp) |
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| APA | Smart Define. (2016). strong thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/strong/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "strong thesaurus" https://smartdefine.org/strong/thesaurus/synonyms (accessed September 27, 2026). |
| Harvard | Smart Define 2016, strong thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/strong/thesaurus/synonyms>. |
| MLA | Smart Define. "strong thesaurus" 1 April 2016. Web. 27 September 2026. <https://smartdefine.org/strong/thesaurus/synonyms> |