noun. The state or quality of being musty or sour; moldiness; damp foulness.

noun. The quality or state of being musty.

noun. The characteristic of being musty.

noun. the quality of smelling or tasting old or stale or mouldy

"But even if the place had been pitch black, I would have known by its smell—a mix of mustiness, dust, and paint—that I was in an old theater, the kind with worn gilt edges and heavy velvet curtains that hung a little longer each year."

staleness  

aftertaste  anthracnose  baking-board  ceviche  cordite  

banality  banalness  cliche  commonness  commonplaceness