Willfulness, especially in satisfying one's own desires or adhering to one's own opinions.(noun)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "self-will" in a sentence
"He was strong, full of self-will, full of the need to succeed, to be different from and better than his peers."
"My friends in the Juice Church would say it was self-will run riot."
"Schelling, for example, affirmed evil's reality as a principle of darkness manifesting in the grandiose exaltation of self-will."