obdurate \OB-duh-rit; -dyuh-\, adjective:
1. Hardened in wrongdoing; stubbornly wicked. Hardened in feelings; hard-hearted.2. Resistant to persuasion; unyielding.3. Hard; harsh; rugged; rough.
Hard to use it in the proper context, eh? You may be an obdurate woman, but I doubt it.