561 entries under adjective topic. ×

4
icy
4
inhuman(harsh, cruel, determined, fierce)
4
meticulous
4
monolithic(solid, normal, even, rigid)
4
ossified(firm, solid, determined, normal)
4
rocky(set, strong, hard, firm)
4
rough(person, strong, hard, tough)
4
straight(direct, right, moderate, level)
4
taut(hard, rough, firm, harsh)
4
uncontrollable
4
unfeeling(mean, hard, tough, severe)
4
unmoving
4
unruly(obstinate, stubborn, willful)
4
unsusceptible(hard, careless, indifferent, cruel)
4
unvarying(set, regular, fixed, even)
4
wayward(obstinate, stubborn, willful)
3
balky(tough, firm, unreasonable, obstinate)
3
cold-blooded(person, hard, careless, indifferent)
3
compressed(set, strong, hard, tough)
3
condensed(hard, tough, solid, rigid)
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APASmart Define. (2016). inflexible thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/inflexible/thesaurus/synonyms
ChicagoSmart Define. 2016. "inflexible thesaurus" https://smartdefine.org/inflexible/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2016, inflexible thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/inflexible/thesaurus/synonyms>.
MLASmart Define. "inflexible thesaurus" 24 March 2016. Web. 29 September 2026. <https://smartdefine.org/inflexible/thesaurus/synonyms>