207 entries under hard topic. ×
| pigheaded(adjective, mean, tough, determined) | |
| solidly(adverb, fast, severely, thoroughly) | |
| starched(adjective, set, solid, rigid) | |
| starchy(adjective, solid, stiff, rigid) | |
| stark(adjective, strong, sound, tough) | |
| tightly(adverb, fast, severely, thoroughly) | |
| uncooperative(adjective, mean, persistent, obstinate) | |
| undoubted(adjective, clear, sound, plain) | |
| unsympathetic(adjective, mean, severe, harsh) | |
| brittle(adjective, solid, stiff, rigid) | |
| bulky(strong, solid, deep, large) | |
| close-grained(adjective, close, solid, short) | |
| contracted(adjective, solid, certain, restrained) | |
| fine-grained(adjective, solid, rigid, inflexible) | |
| fixedly | |
| frozen(adjective, calm, quiet, solid) | |
| hard-boiled(adjective, mean, strong, tough) | |
| hard-core(adjective, close, strong, tough) | |
| hard-hearted(adjective, mean, tough, harsh) | |
| hard-shell(adjective, strong, tough, severe) |
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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> |