Adjective aghast has 1 sense

1. aghast, appalled, dismayed, shocked - struck with fear, dread, or consternation
   Antonyms: unafraid, fearless (indirect, via afraid)
   

Aghast

Part of speech: adjective, adverb

Sense: filled with horror, shock, or dismay

Usage:

• Popular: Aghast at the news, she couldn't believe what she was hearing.
• Local: The entire community was aghast when they discovered the shocking truth.

Part of speech: verb

Sense: to cause someone to feel shocked or horrified

Usage:

• Popular: The graphic images on the news aghasted the viewers.
• Local: The gruesome crime scene aghasted the small town.