willfully
UK: ˈwɪlfəli | US: ˈwɪlfəli
adv. intentionally or deliberately (often with a negative connotation of stubbornness or disregard)
adv. in a self-willed or obstinate manner
The word "willfully" traces back to Old English willan ("to wish, desire"), combined with the suffix -ful (from Old English -full, meaning "full of"). The adverbial -ly (from Old English -lice) was later added to form the modern adverb. The term evolved to emphasize deliberate action, often with a stubborn or defiant undertone, reflecting the original sense of "acting according to one's own will."
He willfully ignored the warnings and continued driving recklessly.
The defendant acted willfully to deceive the investors.
She willfully disobeyed her parents' instructions.
The document was willfully destroyed to hide evidence.
Despite the consequences, he willfully pursued his own agenda.