Is Appall a Noun or Verb?

The state of being appalled or alarmed.

Is appall an adjective?

Appalled is an adjective that describes feeling shocked and disappointed. Being appalled happens suddenly, like when you find out your little sister has been blogging about your family, telling embarrassing stories.

What is a appall?

transitive verb. : to overcome with consternation, shock, or dismay We were appalled by his behavior.