Synonyms and related words :
alarm, appall, awe, daunt, disconcert, discountenance, disgust, dismay, distress, freeze, frighten, give offense, gross out, intimidate, nauseate, offend, outrage, panic, paralyze, petrify, put off, repel, revolt, scare, scare stiff, scare to death, shake, shock, sicken, startle, strike dumb, strike terror into, stun, stupefy, terrify, turn the stomach, upset