137 entries under obstinate topic. ×

3
sure(adjective, strong, tough, flat, firm)
3
ungovernable(adjective, stubborn, willful)
2
bound(adjective, strong, tough, flat, firm)
2
fast(adjective, close, strong, secure, tough)
2
fractious(adjective, deliberate, determined, hateful)
2
incurable(adjective, stubborn, willful)
2
insubordinate(adjective, tough, firm, unreasonable)
2
mean(adjective, hard, harsh, stubborn)
2
stalwart(adjective, strong, hard, tough, firm)
2
unmanageable(adjective, tough, firm, determined, unreasonable)
2
unpliable(adjective, stubborn, willful, obdurate)
1
cantankerous(tough, firm, determined, unreasonable, fixed)
1
confirmed(adjective, hard, rough, harsh, certain)
1
cussed(tough, firm, unreasonable, stubborn)
1
difficult(adjective, hard, severe, rough, harsh)
1
dyed-in-the-wool(adjective, set, strong, hard, tough)
1
ferocious(adjective, hard, rough, harsh, cruel)
1
fierce(adjective, hard, rough, harsh, cruel)
1
forceful(adjective, strong, tough, severe, firm)
1
hard-bitten(adjective, strong, hard, rough, harsh)
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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>