98 entries under inflexible topic. ×
| hardheaded(adjective, determined, resolute, obstinate) | |
| close(adjective, set, hard, tough, severe) | |
| concentrated(adjective, set, strong, hard, tough) | |
| concrete(adjective, set, hard, tough, solid) | |
| condensed(adjective, set, hard, tough, solid) | |
| frozen(adjective, hard, firm, uncertain, anxious) | |
| impervious(adjective, set, hard, tough, solid) | |
| impliable(adjective, hard, firm, dead, rigid) | |
| jelled(adjective, set, hard, tough, firm) | |
| mechanical(adjective, hard, firm, rigid) | |
| unflexible(adjective, hard, tough, firm, rigid) | |
| congealed(adjective, set, hard, tough, firm) | |
| impenetrable(adjective, set, hard, tough, firm) | |
| incompliant(adjective, hard, tough, severe, firm) | |
| indurate(adjective, set, strong, hard, firm) | |
| ossified(adjective, set, hard, firm, solid) | |
| quiet(adjective, secure, rigid, stubborn) | |
| static(secure, severe, exact, still, fixed) | |
| still(secure, rigid, stubborn, motionless) | |
| thickened(adjective, set, hard, firm, solid) |
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| APA | Smart Define. (2015). stiff thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/stiff/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "stiff thesaurus" https://smartdefine.org/stiff/thesaurus/synonyms (accessed September 29, 2026). |
| Harvard | Smart Define 2015, stiff thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/stiff/thesaurus/synonyms>. |
| MLA | Smart Define. "stiff thesaurus" 24 December 2015. Web. 29 September 2026. <https://smartdefine.org/stiff/thesaurus/synonyms> |