thunderstrike Synonyms

knock for six stupefy stun startle stagger shock shake ruffle rock rattle perturb surprise throw trouble throw off balance surprize stop someone in their tracks knock sideways bowl over dumbfound shake up strike dumb unsettle unnerve perplex overwhelm daze confuse confound bother bewilder baffle astonish astound amaze alarm discomfit discompose disconcert nonplus fluster floor flabbergast faze dumfound disturb distress disquiet dismay agitate