- Definitions|2
- Thesaurus|3k
- Abbreviations|0
210 entries under hard topic. ×
| solid(adjective, strong, secure, smooth) | |
| austere(adjective, strong, tough, severe) | |
| stiff-necked(adjective, mean, strong, tough) | |
| hardened(adjective, person, tough, firm) | |
| hardheaded(adjective, strong, tough, cold) | |
| immutable(adjective, set, secure, rough) | |
| stringent(adjective, severe, rough, difficult) | |
| callous(adjective, person, tough, rough) | |
| perverse(adjective, mean, firm, deliberate) | |
| unforgiving(adjective, person, rough, harsh) | |
| unsympathetic(adjective, mean, careless, indifferent) | |
| flinty(adjective, strong, tough, severe) | |
| hard-line(adjective, strong, tough, severe) | |
| merciless(adjective, person, rough, harsh) | |
| cruel(adjective, strong, tough, severe) | |
| hanging tough(expression, adjective, mean, determined) | |
| hard-boiled(adjective, person, mean, strong) | |
| indomitable(adjective, set, strong, tough) | |
| precise(adjective, severe, rough, difficult) | |
| resistant(adjective, firm, determined, resolute) |
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| APA | Smart Define. (2016). inflexible thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/inflexible/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "inflexible thesaurus" https://smartdefine.org/inflexible/thesaurus/synonyms (accessed September 29, 2026). |
| Harvard | Smart Define 2016, inflexible thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/inflexible/thesaurus/synonyms>. |
| MLA | Smart Define. "inflexible thesaurus" 24 March 2016. Web. 29 September 2026. <https://smartdefine.org/inflexible/thesaurus/synonyms> |