complacency /kəmˈpleɪsənˌsiː/ noun3 •A feeling of contented self-satisfaction, especially when unaware of upcoming trouble.Others proclaim the infirmities of a great man with satisfaction and complacency, if they discover none of the like in themselves. — 1712 •An instance of self-satisfaction. •Passivity as a result of contentment with the current situation. formscomplacencies