After running a marathon, she was completely exhausted.
dead tired
Frequency:
80
%
He worked late into the night and was dead tired by the time he got home.
bone tired
Frequency:
70
%
After a long day of hiking, she was bone tired.
worn out
Frequency:
60
%
After a week of exams, the students were worn out.
Idiomatic Expressions for dog tired
Phrase: dead dog tired
Meaning: completely exhausted beyond the point of being able to function
Usage: After running a marathon, I was dead dog tired and could barely walk.