← BackshareGuessmildewy/ˈmɪlˌdui/adjectiveHaving a smell or appearance of mildew; musty or moldy.She threw away the mildewy bread that had been left in the pantry.The old tent smelled mildewy after being stored while still wet.The basement had a mildewy odor that was hard to remove.SynonymsmustymoldyAntonymsfresh