Definition
'Wilful' is an alternative spelling of 'willful,' meaning deliberately or stubbornly doing what one wants, even if it's wrong or harmful. It carries the same implications as 'willful,' suggesting a conscious choice to disobey or act against advice. Imagine someone vandalizing property despite knowing it is wrong, or a student who intentionally cheats on a test. It differs only in spelling, not in meaning or nuance. Think of it as a British variant spelling.