153 entries under firm topic. ×

2
rocklike(adjective, stiff, rigid, unyielding)
2
solidified(adjective, hard, tough, solid)
2
stable(adjective, strong, secure, moderate, flat)
2
stalwart(adjective, strong, hard, tough)
2
unflexible(adjective, hard, tough, solid)
2
ungraceful(adjective, strong, hard, solid)
2
unmanageable(adjective, tough, determined, unreasonable)
2
unmovable(adjective, certain, limited, definite)
1
annealed(adjective, hard, solid, stiff)
1
arthritic(adjective, hard, solid, stiff)
1
benumbed(adjective, hard, solid, stiff)
1
buckram(adjective, hard, solid, stiff)
1
cantankerous(tough, determined, unreasonable, fixed)
1
cemented(adjective, hard, solid, stiff)
1
chilled(adjective, hard, solid, stiff)
1
congealed(adjective, hard, tough, solid)
1
contracted(adjective, close, hard, solid)
1
creaky(adjective, hard, solid, stiff)
1
cussed(tough, unreasonable, obstinate, stubborn)
1
deliberate(adjective, determined, resolute, decisive)
10 years ago|28k views|share |citing 
APASmart Define. (2016). inflexible thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/inflexible/thesaurus/synonyms
ChicagoSmart Define. 2016. "inflexible thesaurus" https://smartdefine.org/inflexible/thesaurus/synonyms (accessed September 30, 2026).
HarvardSmart Define 2016, inflexible thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/inflexible/thesaurus/synonyms>.
MLASmart Define. "inflexible thesaurus" 24 March 2016. Web. 30 September 2026. <https://smartdefine.org/inflexible/thesaurus/synonyms>