complacent vs self-satisfied

complacent and self-satisfied both are adjectives.

Word	Noun	Adjective	Verb	Adverb
complacent	No	Yes	No	No
self-satisfied	No	Yes	No	No

As adjectives, complacent and self-satisfied are synonyms defined as:

complacent and self-satisfied: contented to a fault with oneself or one's actions

Other synonyms of complacent include self-complacent.

complacent (adjective)	self-satisfied (adjective)
contented to a fault with oneself or one's actions	contented to a fault with oneself or one's actions
	marked by excessive complacency or self-satisfaction