561 entries under adjective topic. ×

3
normal(straight, even, rigid, consistent)
3
oppressive(severe, severity)
3
rebellious(tough, firm, unreasonable, obstinate)
3
restricted(certain, limited, definite, intent)
3
savage
3
settled(strong, flat, firm, certain)
3
starched(hard, firm, solid, stiff)
3
stark(hard, severe, firm, solid)
3
strait-laced(severe, severity)
3
strong(set, hard, tough, flat)
3
strong-minded(firm, determined, resolution, fixed)
3
sure(strong, tough, flat, firm)
3
tense(hard, firm, solid, stiff)
3
tyrannical
3
unappeasable(harsh, cruel, determined, fierce)
3
unfaltering(strong, firm, certain, limited)
3
unflagging
3
ungovernable(obstinate, stubborn, willful)
3
uniform(set, regular, fixed, even)
3
unkind
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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>