wilful

Willing; ready; eager; keen.

Due to one's own will; spontaneous; voluntary; deliberate; intentional.

Obstinate and unreasonable; not to be moved from one's notions, inclinations, purposes, or the like, by counsel, advice, commands, or instructions; obstinate; stubborn; refractory; wayward; inflexible.

Synonyms Untoward, Contrary, etc. (see wayward), self-willed, mulish, intractable, headstrong, unruly, heady.

See willful, willfully, and willfulness.