A2
unhappy or worried because something unpleasant has happened
Dictionary examples:
The teacher was upset when nobody did their homework. (0.0)
She was upset when her phone fell in the toilet. (0.0)
I was upset when my pizza had pineapple on it. (0.0)
Mike got very upset when I told him the news. (29.5)
They'd had an argument and she was still upset about it. (34.1)
She was very upset to hear that the trip had been canceled. (37.0)
He was very upset that you didn't reply to his messages. (37.8)