We use this expression to say that we are very worried about something, or not looking forward to it at all.
You can use this phrase in ………… language.
A: Why won’t you be here on Friday?
B: I’ve got to go to the dentist. I’m dreading it – I haven’t been there for three years.
A: Poor you!
A: My wife’s parents are visiting us this weekend.
B: That’s nice.
A: No. I’m dreading it. Her mother hates me!