Complacency :: Complacency (n.) Calm contentment; satisfaction; gratification.
Complacency :: Complacency (n.) The manifestation of contentment or satisfaction; good nature; kindness; civility; affability.
Complacent :: Complacent (a.) Self-satisfied; contented; kindly; as, a complacent temper; a complacent smile..
Self-complacent :: Self-complacent (a.) Satisfied with one's own character, capacity, and doings; self-satisfied..