WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. the trait of being prone to disobedience and lack of discipline
Word Usage
"First, the court held that — given the 1999 amendments to the Lanham Act, and despite some older precedent — willfulness is not a prerequisite to an accounting of profits, and anyway Schneider had enough evidence of willfulness to go to a jury."