170 entries under strong topic. ×
| flinty(adjective, hard, tough, severe) | |
| frowning(adjective, upset, hard, tough) | |
| furious | |
| hang-tough(adjective, hard, tough, sturdy) | |
| hard-boiled(adjective, hard, tough, sturdy) | |
| hard-core(adjective, hard, tough, sturdy) | |
| hard-line(adjective, hard, tough, sturdy) | |
| hard-nosed(adjective, hard, tough, severe) | |
| hard-shell(adjective, hard, tough, sturdy) | |
| hardheaded(adjective, hard, tough, sturdy) | |
| heightened | |
| hulk(adjective, hard, substantial, compact) | |
| hunk(adjective, hard, substantial, compact) | |
| immovable(adjective, hard, tough, sturdy) | |
| indomitable(adjective, hard, tough, sturdy) | |
| mortified(adjective, hard, tough, sturdy) | |
| mulish(adjective, hard, tough, sturdy) | |
| puissant(adjective, informal) | |
| rock(adjective, hard, substantial, compact) | |
| rock hard(expression, adjective, hard, tough) |
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| APA | Smart Define. (2016). heavy thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/heavy/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "heavy thesaurus" https://smartdefine.org/heavy/thesaurus/synonyms (accessed September 26, 2026). |
| Harvard | Smart Define 2016, heavy thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/heavy/thesaurus/synonyms>. |
| MLA | Smart Define. "heavy thesaurus" 25 January 2016. Web. 26 September 2026. <https://smartdefine.org/heavy/thesaurus/synonyms> |