Synonyms: musty, frowsty, fusty
Definition: stale and unclean smelling
Similar words: unpleasant-smelling, stinky, ill-smelling, malodorous, malodourous
Definition: having an unpleasant smell
Synonyms: moldy, mouldy, musty
Definition: covered with or smelling of mold
Usage: moldy bread; a moldy (or musty) odor
Similar words: stale
Definition: lacking freshness, palatability, or showing deterioration from age
Usage: stale bread; the beer was stale