ap ‧ pal ‧ ling /əˈpɔːlɪŋ $ əˈpɒː-/ BrE AmE adjective
1 . very unpleasant and shocking SYN terrible :
She suffered appalling injuries.
He was kept in appalling conditions in prison.
an appalling famine
2 . very bad SYN atrocious :
The weather was absolutely appalling.
—appallingly adverb :
He behaved appallingly.
an appallingly difficult job