- Definitions|3
- Thesaurus|1.1k
- Abbreviations|0
94 entries under hard topic. ×
| intractable(adjective, firm, difficult, determined) | |
| dogged(adjective, mean, determined, fixed) | |
| set in stone(expression, adjective, idiom, mean) | |
| staunch(adjective, set, strong, firm) | |
| unswayable(adjective, determined, resolute, obstinate) | |
| hanging tough(expression, adjective, mean, determined) | |
| implacable(adjective, mean, strong, tough) | |
| pigheaded(adjective, mean, determined, usual) | |
| unalterable(adjective, set, steady, regular) | |
| grim(adjective, strong, tough, determined) | |
| immutable(adjective, set, steady, regular) | |
| iron(adjective, mean, strong, tough) | |
| steely(adjective, strong, tough, determined) | |
| stiff-necked(adjective, mean, strong, tough) | |
| hardheaded(adjective, strong, tough, determined) | |
| perverse(adjective, mean, wild, determined) | |
| rigorous(adjective, set, strong, tough) | |
| severe(adjective, strong, tough, cruel) | |
| tough(adjective, mean, strong, determined) | |
| uncompliant(adjective, firm, determined, resolute) |
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| APA | Smart Define. (2015). immovable thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/immovable/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "immovable thesaurus" https://smartdefine.org/immovable/thesaurus/synonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2015, immovable thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/immovable/thesaurus/synonyms>. |
| MLA | Smart Define. "immovable thesaurus" 3 August 2015. Web. 23 September 2026. <https://smartdefine.org/immovable/thesaurus/synonyms> |