153 entries under stubborn topic. ×

13
unalterable(adjective, set, strong, hard, secure)
13
uncompliant(adjective, resist, determined, resolute, obstinate)
13
unswayable(adjective, determined, resolute, rigid, obstinate)
12
hidebound(adjective, moderate, severe, firm, determined)
12
persistent(adjective, strong, tough, flat, firm)
12
refractory(adjective, hard, tough, rough, firm)
12
set in stone(expression, adjective, idiom, mean, hard)
12
solid(adjective, strong, hard, secure, smooth)
12
unswerving(adjective, strong, smooth, tough, firm)
11
incompliant(adjective, tough, firm, solid, resist)
11
stiff-necked(adjective, mean, strong, hard, tough)
10
contrary(adjective, determined, resolute, obstinate)
10
hardened(adjective, person, hard, tough, firm)
10
hardheaded(adjective, strong, hard, tough, cold)
10
immutable(adjective, set, hard, secure, rough)
10
staunch(adjective, strong, tough, flat, firm)
10
stringent(adjective, hard, severe, rough, difficult)
9
callous(adjective, person, hard, tough, rough)
9
opinionated(adjective, firm, determined, unreasonable, fixed)
9
perverse(adjective, mean, hard, firm, deliberate)
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APASmart Define. (2016). inflexible thesaurus. Retrieved October 1, 2026, from https://smartdefine.org/inflexible/thesaurus/synonyms
ChicagoSmart Define. 2016. "inflexible thesaurus" https://smartdefine.org/inflexible/thesaurus/synonyms (accessed October 1, 2026).
HarvardSmart Define 2016, inflexible thesaurus, Smart Define, viewed 1 October, 2026, <https://smartdefine.org/inflexible/thesaurus/synonyms>.
MLASmart Define. "inflexible thesaurus" 24 March 2016. Web. 1 October 2026. <https://smartdefine.org/inflexible/thesaurus/synonyms>