smugness vs complacence

smugness and complacence both are nouns.

Word	Noun	Adjective	Verb	Adverb
smugness	Yes	No	No	No
complacence	Yes	No	No	No

As nouns, complacence is a hypernym of smugness; that is, complacence is a word with a broader meaning than smugness:

Other hypernyms of smugness include complacency, self-complacency, self-satisfaction.

smugness (noun)	complacence (noun)
an excessive feeling of self-satisfaction	the feeling you have when you are satisfied with yourself