* Formal: The appalling conditions in the refugee camp were a disgrace to humanity.
* Informal: The food at that restaurant was appalling – I couldn't even finish my meal.
* Descriptive: The sight of the polluted river was appalling, filled with trash and dead fish.
* Figurative: The news of the accident was an appalling blow to the family.
* Emphatic: It's appalling that people are still being denied basic human rights in this day and age.
Remember, "appalling" is a strong word, so use it carefully to convey a sense of disgust or horror.