ap·pal appals appalling appalled in AM, use appall If something appals you, it disgusts you because it seems so bad or unpleasant. His ignorance appals me = horrify. to make someone feel very shocked and upset (apalir, from palir )
fill with apprehension or alarm; cause to be unpleasantly surprised; "I was horrified at the thought of being late for my interview"; "The news of the executions horrified us"
If you are appalled by something, you are shocked or disgusted because it is so bad or unpleasant. We are all, of course, appalled that such items are still on sale in the shops. very shocked and upset by something very bad or unpleasant appalled by