exhaustion
nounUK /ɪɡˈzɔːstʃən/
US /ɪɡˈzɔːstʃən/
The feeling of being so tired that you have no energy left.
After running the marathon, she collapsed on the grass in total exhaustion.
OTHER MEANINGS
2. The act of using up all of something, such as money or supplies.
The exhaustion of the town's water supply worried everyone.
3. The act of talking about a subject so completely that nothing more is left to say.
The teacher's exhaustion of the topic left no questions unanswered.
4. In science, the state of being completely drained of strength or resources.
The battery reached exhaustion after ten hours of use.