comedown

noun
UK /ˈkʌm.daʊn/
US /ˈkʌm.daʊn/

A comedown is a sad feeling after something fun ends.

After the big party, he felt a comedown the next day.


OTHER MEANINGS

2. A drop from a high or better position to a lower one.

Losing the championship was a real comedown for the team.

3. The unpleasant feeling after a drug wears off.

He felt shaky during the comedown from the medicine.

4. A reduction in status or importance.

Moving from a big house to a tiny flat felt like a comedown.