\ 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 Still considering what everyone in the theater business has been through since 2020, several moldy pie crusts are no big thing. Kirby Adams, The Courier-Journal, 29 Sep. 2021 Those people, researchers say, shouldn’t be anywhere near a moldy house, let alone working to remediate one, and should stay away from floodwaters. Maryn Mckenna, Wired, 20 Sep. 2021 In some ways this year might be a glimpse into a wet and moldy future. Erik Vance, Scientific American, 4 Dec. 2018 Retailers share that items in their inventory would arrive damp and moldy. Mahita Gajanan, Time, 10 Sep. 2021 That announcement was supported by a bold ad featuring a moldy Whopper, which certainly got people talking. Alicia Kelso, Forbes, 9 Sep. 2021 There were moldy photo albums with memories spanning decades. Ray Sanchez, CNN, 6 Sep. 2021 Old carpet, moldy swamp coolers and leaching chemicals can be sources of indoor air pollution on their own. Leia Larsen, The Salt Lake Tribune, 31 Aug. 2021 Moyer's fellow researcher Mary Hunt found a moldy cantaloupe at a Peoria market and brought it to the lab for analysis, says NCAUR biochemist Neil Price, who championed the state microbe designation. Jim Daley, Scientific American, 16 Aug. 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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Dictionary Entries Near moldy



moldy corn poisoning

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Statistics for moldy

Last Updated

6 Oct 2021

Cite this Entry

“Moldy.” Dictionary, Merriam-Webster, Accessed 26 Oct. 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

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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