Obstinate and unruly; strongly opposed to something.
Not affected by great heat.
Difficult to treat.
Incapable of registering a reaction or stimulus.
A material or piece of material, such as a brick, that has a very high melting point.
Obstinate; strong-minded; unyielding to the desires, concern or opinions of others.
Possessing self-will; determined to pursue one's own desires or adhere to one's own opinion..
He was so self-willed that he refused to do anything that did not grant instant satisfaction or direction.