startle Synonyms

start frighten alarm jump surprise shock scare galvanize terrify terrorize throw thunderstrike twitch stupefy scaring scarify shake shudder spook stagger jolted strike stun unnerve unsettle unstring galvanise jolting rear back boo bowl over overreact powered scare off traumatize take aback bushwhack dumbfound upset wince zincify to start strike dumb appal consternate terrorise shake up leave open-mouthed affright daunt