perturbation Synonyms

fluster upset disturbance disruption trepidity trepidation trouble tilmus terror tension tempest swage inquietude subsultus misgiving misperception nervosity nervousness panic suscitation pother presentiment seaquake solicitude tumult turbidity jitters nerves banana skin angst creeps snit disconcertment edginess disorientation perturbedness jumpiness jitteriness turbulence turmoil unease uneasiness unrest worriment worry disquietude restlessness befuddlement sheepishness hysteria