adjective
fusty
FUS-tee/ˈfʌsti/
Stale and musty from lack of fresh air.
The fusty blankets make the man pinch his nose above the open trunk.

Etymology
French fusté described something tasting of its wooden cask. That association with the container helps explain how the word came to describe a stale smell.
In context
Really? You think I sound like some fusty old like Victorian dude?"
More examples
- A fusty odor drifts out of the closed closet.
- These blankets smell fusty after months in storage.
- Fresh air makes the basement less fusty.
Forms
fusty · fustier · fustiest
fustiness noun — The quality of smelling stale and musty.