\ ˈmōl-dē How to pronounce moldy (audio) \
moldier; moldiest

Definition of moldy

1 : of, resembling, or covered with mold
2a : being old and moldering : crumbling
b : antiquated, fusty moldy tradition

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Other Words from moldy

moldiness noun

Examples of moldy in a Sentence

Her books became moldy after being left in a damp basement. The wine had a slightly moldy aroma.
Recent Examples on the Web Hair that’s sent wet becomes too moldy, and sometimes hair is just too damaged from treatments. Washington Post, "Our long pandemic hair is finally getting cut — and hair donation charities are overwhelmed," 22 Apr. 2021 Sewer back-ups are common, along with leaky pipes, moldy walls and lousy cell phone reception. J.k. Dineen, San Francisco Chronicle, "In S.F. the future of public housing will share space with high rent homes," 11 Mar. 2021 Inmates have complained of moldy food, lack of water and lack of showers, Dickerson told the newspaper. Dom Calicchio, Fox News, "Oklahoma City sees protest outside jail following hostage drama," 28 Mar. 2021 Don’t try to paper it over like a moldy wall in a Starbucks bathroom. Brian Moylan, Vulture, "The Real Housewives of New Jersey Recap: Bad Vibrations," 24 Mar. 2021 This 135-gallon deck box is made with weather- and leak-resistant resin, so your cushions won’t get damp or moldy. Lily Gray, Better Homes & Gardens, "The 11 Best Outdoor Storage Essentials for Your Backyard, According to Reviews," 2 Apr. 2021 One day, Pallotta opened a takeout container to find half a moldy turkey sandwich. Lizzie Johnson, San Francisco Chronicle, "The Grand Princess cruise was supposed to be their big anniversary celebration. Then COVID-19 hit," 6 Mar. 2021 These videos tend to be hyper-focused: Rather than tidying entire rooms, creators unscrew their moldy dishwasher filters and fish yards of scummy hair from their shower drains, sparing none of the slimy details. New York Times, "Deep-Cleaning Videos Are Getting Grosser," 3 Feb. 2021 Leave it to Randy Rainbow to take this hilarious case of word vomit and make an entire song comparing Trump to moldy cheese. Xavier Piedra, Billboard, "41 Times Parody Singer Randy Rainbow Roasted Donald Trump," 10 Jan. 2021

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'moldy.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of moldy

14th century, in the meaning defined at sense 1

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Time Traveler for moldy

Time Traveler

The first known use of moldy was in the 14th century

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Statistics for moldy

Last Updated

3 May 2021

Cite this Entry

“Moldy.” Dictionary, Merriam-Webster, Accessed 10 May. 2021.

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More Definitions for moldy



English Language Learners Definition of moldy

: covered with mold
: resembling mold : tasting, smelling, or looking like mold


\ ˈmōl-dē How to pronounce moldy (audio) \
moldier; moldiest

Kids Definition of moldy

: covered with or containing mold moldy fruit


variants: or chiefly British mouldy \ ˈmōl-​dē How to pronounce moldy (audio) \
moldier or chiefly British mouldier; mouldiest

Medical Definition of moldy

: covered with a mold-producing fungus moldy bread

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More from Merriam-Webster on moldy

Thesaurus: All synonyms and antonyms for moldy

Nglish: Translation of moldy for Spanish Speakers

Britannica English: Translation of moldy for Arabic Speakers

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