to alter from a settled state; cause to be no longer firmly fixed or established; render unstable; disturb

Violence unsettled the government.

to shake or weaken (beliefs, feelings, etc.); cause doubt or uncertainty about

doubts unsettling his religious convictions.

to vex or agitate the mind or emotions of; upset; discompose

The quarrel unsettled her.

to become unfixed or disordered.

verb

balance , compose , order , settle

verb

agitate , confuse , dement , derange , disarrange , disarray , discommode , discompose , disconcert , disorder , disorganize , displace , disquiet , disrupt , disturb , down , flurry , fluster , fuddle , get to * , jumble , needle , perturb , psych out , put off , rattle , ruffle , rummage , sicken , spook , throw , throw off * , trouble , turn , unbalance , unhinge * , unnerve , mess up , mix up , muddle , tumble , upset , bother , distract , rock , shake , toss