1 affright, alarm, frighten, intimidate, petrify, put the wind up (informal) scare, terrify, terrorize
2 appal, disgust, dismay, gross out (U.S. slang) make one's hair stand on end, outrage, shock, sicken
Antonyms
comfort, delight, enchant, encourage, gladden, hearten, please, reassure, soothe