6
fractious(adjective, control, order, mean, resist)
6
harsh(adjective, mean, hard, severe, rough)
6
immutable(adjective, set, strong, hard, severe)
6
insubordinate(adjective, negative, hostile, inflexible, adverse)
6
mutinous
6
single-minded(adjective, tough, firm, intense, deliberate)
6
strict(adjective, hard, tough, moderate, severe)
6
unfaltering(adjective, firm, intense, deliberate, determined)
6
unswerving
5
adverse(adjective, cross, negative, hostile, different)
5
biased(adjective, passionate, violent, fervent, rigid)
5
bold(adjective, tenacious, defiant)
5
bovine(adjective, determined, resolute, uncompromising, unshakeable)
5
brass-bound(adjective, determined, resolute, uncompromising, unshakeable)
5
cantankerous(adjective, mean, difficult, determined, irritable)
5
contradictory(adjective, determined, negative, hostile, fixed)
5
decisive(adjective, determined, usual, regular, serious)
5
definite(adjective, firm, determined, usual, unreasonable)
5
diligent(adjective, tenacious)
5
hearty(adjective, tenacious)
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APASmart Define. (2015). obstinate thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/obstinate/thesaurus/synonyms
ChicagoSmart Define. 2015. "obstinate thesaurus" https://smartdefine.org/obstinate/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, obstinate thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/obstinate/thesaurus/synonyms>.
MLASmart Define. "obstinate thesaurus" 3 August 2015. Web. 24 September 2026. <https://smartdefine.org/obstinate/thesaurus/synonyms>