- The definition of complacent is happy with one's self and unconcerned.
An example of complacent is a person working in their office and not worried about the dangerous weather conditions outside.
complacent definition by Webster's New World
- satisfied; esp., self-satisfied, or smug
- affable; complaisant
Origin: Classical Latin complacens, present participle of complacere, to be very pleasing ; from com-, intensive plush placere, to please
- complacently adverb
complacent definition by American Heritage Dictionary
- Contented to a fault; self-satisfied and unconcerned: He had become complacent after years of success.
- Eager to please; complaisant.
Origin: Latin complacēns, complacent-, present participle of complacēre, to please : com-, intensive pref.; see com- + placēre, to please; see plāk-1 in Indo-European roots.
- com·plaˈcent·ly adverb