207 entries under hard topic. ×
| chilled(adjective, solid, stiff, rigid) | |
| cold fish(expression, adjective, mean, stubborn) | |
| creaky(adjective, solid, stiff, rigid) | |
| cruel(adjective, strong, tough, severe) | |
| disciplinary(adjective, strong, tough, severe) | |
| dry(verb, adjective, close, set, fix) | |
| dyed-in-the-wool(adjective, close, set, strong) | |
| fierce(adjective, clear, tough, severe) | |
| forbidding(adjective, strong, tough, severe) | |
| graceless(adjective, solid, stiff, rigid) | |
| hard-bitten | |
| hard as nails(expression, adjective, idiom, set, strong) | |
| hefty(adjective, strong, sound, tough) | |
| high(deep, fat, broad, bulky) | |
| hunk(adjective, strong, noble, substantial) | |
| immalleable(adjective, solid, stiff, rigid) | |
| insensible(adjective, strong, tough, sturdy) | |
| mean(adjective, clear, tough, severe) | |
| mechanical(adjective, solid, stiff, rigid) | |
| narrow(adjective, close, rough, harsh) |
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| APA | Smart Define. (2016). firm thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/firm/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "firm thesaurus" https://smartdefine.org/firm/thesaurus/synonyms (accessed September 25, 2026). |
| Harvard | Smart Define 2016, firm thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/firm/thesaurus/synonyms>. |
| MLA | Smart Define. "firm thesaurus" 31 March 2016. Web. 25 September 2026. <https://smartdefine.org/firm/thesaurus/synonyms> |