Synonyms of musty

Adjective

1. moldy, mouldy, musty, stale (vs. fresh)

usage: covered with or smelling of mold; "moldy bread"; "a moldy (or musty) odor"

2. fusty, musty, frowsty, malodorous (vs. fragrant), malodourous, unpleasant-smelling, ill-smelling, stinky

usage: stale and unclean smelling

Definition and meaning of musty (Dictionary)