Complacent/Complaisant

Complacent: Complacent is an adjective that means to be content or pleased, but often without awareness of potential danger.

Complaisant: Complaisant is an adjective that means to be inclined or disposed to please.

Example Sentence: After years of service, she became very complacent in her duties.

                   He was described as being a very complaisant man.