A2
in a way that is not acceptable or of good quality
Dictionary examples:
The chef cooked so badly, even the flies left the restaurant. (0.0)
The clown juggled so badly, he hit himself with every ball. (0.0)
He acted so badly in the school play, the audience fell asleep. (0.0)
He did badly in his exams. (14.9)
They played very badly in the first half. (16.0)
Their children are extremely badly behaved. (22.9)
The event was badly organized. (24.2)