[ˈwɪlf(ʊ)l], (Adjective)

Definitions:
- (of a bad or harmful act) intentional; deliberate
(e.g: wilful acts of damage)

- having or showing a stubborn and determined intention to do as one wants, regardless of the consequences
(e.g: a spoiled, wilful child)


Phrases:

Origin:
Middle English: from the noun will + -ful