wilful

adj.

[1]	intentional , willful , deliberate , voluntary , conscious , intended , purposeful , premeditated , (US) willful
[2]	stubborn , froward , headstrong , headstrong , pigheaded , self-willed , willful , obstinate , mulish , inflexible , adamant , obdurate , intransigent , unyielding , self-willed , ungovernable , recalcitrant , unruly , immovable , intractable , dogged , determined , refractory , uncompromising , wayward , perverse , contrary