/ Dictionary / Index O obstinacy: Meaning and Definition of Find definitions for: ob•sti•na•cy Pronunciation: (ob'stu-nu-sē), [key] — pl. -cies the quality or state of being obstinate; stubbornness. unyielding or stubborn adherence to one's purpose, opinion, etc. stubborn persistence: The garrison fought on with incredible obstinacy. resistance to cure, relief, or treatment, as a disease. an instance of being obstinate; an obstinate act, viewpoint, etc. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: obstinacy (Thesaurus) obstetrics obstinate Related Content Daily Word Quiz: cur Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language