The definition of appalling is something that is so bad that it causes people to be shocked, get angry about it or be terrified by it.
The grim condition of people in poverty-stricken areas is an example of an appalling condition.
causing horror, shock, or dismay
Causing consternation or dismay; frightful: appalling working conditions.
- Present participle of appall.
(comparative more appalling, superlative most appalling)
- Not to be confused with appealing.