Obstinate a. : Pertinaciously adhering to an opinion, purpose, or course; persistent; not yielding to reason, arguments, or other means; stubborn; pertinacious; -- usually implying unreasonableness.

Obstinate a. : Not yielding; not easily subdued or removed; as, obstinate fever; obstinate obstructions.

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Taxonomy
Merriam-Webster Online Dictionary, Dictionary, sti, nate, webster, persistence, Word Games, Webster Online Dictionary with audio pronunciations, Middle English, admirable, thesaurus, mulish, glossary, language, ESL, Search, äb, adjective.

Defination from the web:
obstinate from the Merriam-Webster Online Dictionary with audio pronunciations, thesaurus, Word of the Day, and word games. ... synonyms obstinate, dogged, stubborn, pertinacious, mulish mean fixed and unyielding in course or purpose. ...