appall-v; 1 Senses

Sense Number 1: strike with disgust or alarm

Commentary: NP1 APPALL NP2

Janice Joplin in turn appalled us all in her ghastly, large round
shades that, despite everything, caught on quickly in the 70s.
I was appalled at the thought of speaking before the two most
famous orators in the world.

VerbNet: amuse-31.1
FrameNet: NP
PropBank: appall.01
WordNet 3.0 Sense Numbers: 1, 2