self-willed vs wilful

self-willed and wilful both are adjectives.

Word	Noun	Adjective	Verb	Adverb
self-willed	No	Yes	No	No
wilful	No	Yes	No	No

As adjectives, self-willed and wilful are synonyms defined as:

self-willed and wilful: habitually disposed to disobedience and opposition

Other synonyms of self-willed include froward, headstrong, willful.

self-willed (adjective)	wilful (adjective)
habitually disposed to disobedience and opposition	habitually disposed to disobedience and opposition
	done by design