complacence vs self-complacency

complacence and self-complacency both are nouns.

Word	Noun	Adjective	Verb	Adverb
complacence	Yes	No	No	No
self-complacency	Yes	No	No	No

As nouns, complacence and self-complacency are synonyms defined as:

complacence and self-complacency: the feeling you have when you are satisfied with yourself

Other synonyms of complacence include complacency, self-satisfaction.

complacence (noun)	self-complacency (noun)
the feeling you have when you are satisfied with yourself	the feeling you have when you are satisfied with yourself