Noah Webster's Dictionary 1. (p. pr. & vb. n.) of Appall. 2. (a.) Such as to appall; as, an appalling accident.

Multi-Version Concordance Appalling (2 Occurrences) Jeremiah 5:30 An appalling and horrible thing is committed in the land: (DBY JPS NAS RSV) Jeremiah 18:13 Therefore thus says Yahweh: Ask now among the nations, who has heard such things; the virgin of Israel has done a very horrible thing. (See NAS)