WILFUL

adj. 1 intentional, deliberate, voluntary, conscious, intended, purposeful, premeditated, US willful The jury decided that such a wilful act of vandalism must be punished She is accused of wilful neglect of her children. 2 stubborn, headstrong, pigheaded, obstinate, mulish, inflexible, adamant, obdurate, intransigent, unyielding, self-willed, ungovernable, recalcitrant, unruly, immovable, intractable, dogged, determined, refractory, uncompromising, wayward, perverse, contrary Jim is far too wilful, and tends to have a tantrum if he fails to get his own way