unsettle: Meaning and Definition of

un•set•tle

1. to alter from a settled state; cause to be no longer firmly fixed or established; render unstable; disturb: Violence unsettled the government.
2. to shake or weaken (beliefs, feelings, etc.); cause doubt or uncertainty about: doubts unsettling his religious convictions.
3. to vex or agitate the mind or emotions of; upset; discompose: The quarrel unsettled her.

1. to become unfixed or disordered.