100 entries under sturdy topic. ×
| ferrous(adjective, strong, hard, tough) | |
| flinty(adjective, strong, hard, tough, severe) | |
| frowning(adjective, upset, strong, hard, tough) | |
| hang-tough(adjective, strong, hard, tough) | |
| hard-boiled(adjective, strong, hard, tough) | |
| hard-core(adjective, strong, hard, tough) | |
| hard-line(adjective, strong, hard, tough) | |
| hard-nosed(adjective, strong, hard, tough, severe) | |
| hard-shell(adjective, strong, hard, tough) | |
| hardheaded(adjective, strong, hard, tough) | |
| immovable(adjective, strong, hard, tough) | |
| indomitable(adjective, strong, hard, tough) | |
| mortified(adjective, strong, hard, tough) | |
| mulish(adjective, strong, hard, tough) | |
| sizable(significant, large, robust, considerable) | |
| steel(adjective, strong, hard, tough) | |
| steely(adjective, dull, strong, hard, tough) | |
| stiff-necked(adjective, strong, hard, tough) | |
| tough inflexible(expression, strong, hard, tough) | |
| unrelenting(adjective, strong, hard, tough, severe) |
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| APA | Smart Define. (2016). heavy thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/heavy/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "heavy thesaurus" https://smartdefine.org/heavy/thesaurus/synonyms (accessed September 27, 2026). |
| Harvard | Smart Define 2016, heavy thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/heavy/thesaurus/synonyms>. |
| MLA | Smart Define. "heavy thesaurus" 25 January 2016. Web. 27 September 2026. <https://smartdefine.org/heavy/thesaurus/synonyms> |