561 entries under adjective topic. ×

3
correct
3
critical
3
dead set(determined, resolute, uncompromising, unshakeable)
3
dense(close, set, strong, hard)
3
doctrinaire(opinionated, dogmatic)
3
even(smooth, right, solid, level)
3
exact
3
hanging(determined, resolute, obstinate, uncompromising)
3
hard-and-fast(hard, strict, obstinate, stubborn)
3
illiberal(moderate, rigid, cautious, timid)
3
impenetrable(set, strong, hard, tough)
3
impervious(hard, tough, solid, rigid)
3
impliable(hard, firm, solid, stiff)
3
incorrigible(normal, even, rigid, reliable)
3
indifferent(hard, careless, cruel, apathetic)
3
inevitable(certain, fixed, expected, predictable)
3
insensitive(hard, careless, indifferent, cruel)
3
intense(severe, harsh, cruel, resolute)
3
iron-willed(determined, resolute, uncompromising, unshakeable)
3
irreconcilable(hostile, conflicting)
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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>