Simple Definition of musty

from our Learner's Dictionary

musty

adjective

ˈmʌsti How to pronounce musty (audio)
mustier; mustiest
: having a bad smell because of wetness, old age, or lack of fresh air
musty old books
a dark and musty basement

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“Musty.” Merriam-Webster.com Simple Definition, Merriam-Webster, https://www.merriam-webster.com/simple/musty. Accessed 15 Apr. 2026.

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