Pronunciation: (ob'stu-nit), [key]
1. firmly or stubbornly adhering to one's purpose, opinion, etc.; not yielding to argument, persuasion, or entreaty.
2. characterized by inflexible persistence or an unyielding attitude; inflexibly persisted in or carried out: obstinate advocacy of high tariffs.
3. not easily controlled or overcome: the obstinate growth of weeds.
4. not yielding readily to treatment, as a disease.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.