01 a. Pertinaciously adhering to an opinion, purpose, or course; persistent; not yielding to reason, arguments, or other means; stubborn; pertina…
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1.
Pertinaciously adhering to an opinion, purpose, or course; persistent; not yielding to reason, arguments, or other means; stubborn; pertinacious; -- usually implying unreasonableness.“I have known great cures done by obstinate resolution of drinking no wine.” — Sir W. Temple.“No ass so meek, no ass so obstinate.” — Pope.“Of sense and outward things.” — Wordsworth.
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2.
Not yielding; not easily subdued or removed; as, obstinate fever; obstinate obstructions.
Syn.
Stubborn; inflexible; immovable; firm; pertinacious; persistent; headstrong; opinionated; unyielding; refractory; contumacious. See Stubborn.