B1
extremely tired
Dictionary examples:
The exhausted student fell asleep on his pizza during lunch. (0.0)
The exhausted student wrote 'pizza' as the answer to every math problem. (0.0)
The exhausted jogger accidentally ran into a tree while texting. (0.0)
Exhausted, they fell asleep. (48.5)
By the time they reached the summit they were exhausted. (58.6)