124 entries under rigid topic. ×

11
unbendable(adjective, firm, determined, unreasonable, resolute)
9
perpetual(adjective, dull, determined, usual, steady)
9
static(adjective, calm, quiet, secure, smooth)
9
tough(adjective, mean, strong, hard, sound)
9
unswayable(adjective, determined, stiff, resolute)
8
attached(adjective, secure, firm, true, constant)
7
hanging tough(expression, adjective, mean, hard, determined)
7
strong(adjective, hard, sound, secure, tough)
6
pat(adjective, firm, solid, certain, determined)
6
undeviating(adjective, strong, severe, flat, firm)
6
uniform(adjective, firm, solid, ordinary, usual)
5
exact(adjective, clear, strong, severe, flat)
5
hard(adjective, adverb, mean, strong, rough)
5
inalterable(adjective, set, hard, regular)
5
irreversible(adjective, even, inflexible, consistent)
5
resistant(adjective, strong, tough, firm, determined)
4
cemented(noun, verb, adjective, strong, hard)
4
consistent(adjective, dull, set, strong, flat)
4
immotile(adjective, calm, secure, still, steady)
4
inelastic(adjective, severe, firm, solid, determined)
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APASmart Define. (2016). fixed thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/fixed/thesaurus/synonyms
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HarvardSmart Define 2016, fixed thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/fixed/thesaurus/synonyms>.
MLASmart Define. "fixed thesaurus" 16 March 2016. Web. 22 September 2026. <https://smartdefine.org/fixed/thesaurus/synonyms>