Obduracy n. : The duality or state of being obdurate; invincible hardness of heart; obstinacy.

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Taxonomy
obduracy, Merriam-Webster Online Dictionary, Dictionary, webster, ra, äb, Word Games, Webster Online Dictionary with audio pronunciations, Custom Search, glossary, english, language, ESL, Search, cy, dy, dyu, Inflected.

Defination from the web:
obduracy from the Merriam-Webster Online Dictionary with audio pronunciations, thesaurus, Word of the Day, and word games. ... Learn more about "obduracy" with Google Search >> Custom Search. Learn more about "obduracy" and related topics at Britannica.com ...