The word "self-willed" in English means: Determined to do what you want even if other people advise you not to, Having your own way; obstinate; headstrong; determined to have one's own way..
The phonetic transcription of "self-willed" is /ˌselfˈwɪld/ in British English and /ˌselfˈwɪld/ in American English. Click the 🔊 button to hear both pronunciations.