127 entries under hard topic. ×
| fixed(adjective, set, strong, sound) | |
| grim(adjective, dull, quiet, strong) | |
| hairy(adjective, bad, severe, rough) | |
| hard as nails(expression, adjective, idiom, strong) | |
| impervious(adjective, set, tough, solid) | |
| implacable(adjective, strong, tough, harsh) | |
| inexorable(adjective, strong, tough, severe) | |
| inflexible(adjective, strong, tough, severe) | |
| insensible(adjective, dull, quiet, strong) | |
| involved(adjective, tough, obscure, rough) | |
| massed(adjective, close, strong, substantial) | |
| murder(adjective, tough, severe, rough) | |
| obdurate(adjective, strong, tough, severe) | |
| physical(adjective, strong, substantial, compact) | |
| refractory(tough, solid, rigid, inflexible) | |
| relentless(adjective, strong, tough, severe) | |
| rigid(adjective, strong, tough, severe) | |
| secure(adjective, strong, sound, tough) | |
| solidified(adjective, set, tough, solid) | |
| strict(adjective, strong, tough, severe) |
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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> |