Letdown and Nonevent

Letdown noun - The emotion felt when one's expectations are not met.

Nonevent and letdown are semantically related. In some cases you can use "Nonevent" instead a noun "Letdown".

Nonevent noun - An anticipated event that turns out to be far less significant than was expected.

Letdown and nonevent are semantically related. Sometimes you can use "Letdown" instead a noun "Nonevent".