1. causing great horror or fear; frightful
2. extremely unpleasant or bad
Usage: informal
3. resembling a ghost; deathly pale

1. in a ghastly manner; extremely
Usage: informal

Examples

• The ghastly crime scene shocked even experienced detectives.
• She looked ghastly pale after hearing the bad news.
• The movie was ghastly – we left halfway through.
• His ghastly appearance frightened the children.
• The weather was ghastly cold that winter.
• The accident left ghastly injuries on the victim.
• She felt ghastly sick after eating the spoiled food.