| incompliant(adjective, hard, tough, severe, firm) | |
| inextensible(adjective, unflexible) | |
| irresilient | |
| soft(softness, inelasticity) | |
| stable(adjective, unflexible) | |
| stark(adjective, hard, firm, solid, stiff) | |
| stony(adjective, hard, firm, solid, stiff) | |
| unadaptable(adjective, unflexible) | |
| unflexible(adjective, hard, tough, firm, solid) | |
| unshakable(adjective, determined, resolute, obstinate, uncompromising) | |
| adamantine | |
| aluminous | |
| annealed(adjective, hard, firm, solid, stiff) | |
| arthritic(adjective, hard, firm, solid, stiff) | |
| benumbed(adjective, hard, firm, solid, stiff) | |
| buckram(adjective, hard, firm, solid, stiff) | |
| cast-iron | |
| cemented(adjective, hard, firm, solid, stiff) | |
| chilled(adjective, hard, firm, solid, stiff) | |
| congealed(adjective, hard, tough, firm, solid) |
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| APA | Smart Define. (2015). inelastic thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/inelastic/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "inelastic thesaurus" https://smartdefine.org/inelastic/thesaurus/synonyms (accessed September 22, 2026). |
| Harvard | Smart Define 2015, inelastic thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/inelastic/thesaurus/synonyms>. |
| MLA | Smart Define. "inelastic thesaurus" 14 April 2015. Web. 22 September 2026. <https://smartdefine.org/inelastic/thesaurus/synonyms> |