moldier; moldiest
1
: of, resembling, or covered with mold
2
a
: being old and moldering : crumbling
b
: antiquated, fusty
moldy tradition
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
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Dallas restaurant inspectors found a live rat on a glue trap at one location and a pot of moldy soup at another in the latest round of health inspections, according to the inspection report. Lillie Davidson, Fort Worth Star-Telegram, 30 Aug. 2025 Sliced tomato and raw beef patties measured outside of proper holding temperatures, and there were moldy tomatoes inside the refrigerator. Sacbee.com, 29 Aug. 2025 While some people can ingest a bite of moldy food and experience no symptoms, some mold found on spoiled food can be dangerous, according to Cleveland Clinic. Kimberlee Speakman, People.com, 26 Aug. 2025 Upon returning to the plant in late December 2024 from a holiday break, Wilmoth, the employee who works in formation production at the battery park, was hit with a moldy, mildew smell. Olivia Evans, The Courier-Journal, 21 Aug. 2025 See All Example Sentences for moldy

Word History

First Known Use

14th century, in the meaning defined at sense 1

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

Cite this Entry

“Moldy.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/moldy. Accessed 9 Sep. 2025.

Kids Definition

moldy

adjective
moldier; moldiest
: resembling, containing, or covered with mold
moldiness noun

Medical Definition

moldy

adjective
variants or chiefly British mouldy
moldier or chiefly British mouldier; mouldiest
: covered with a mold-producing fungus
moldy bread

More from Merriam-Webster on moldy

Last Updated: - Updated example sentences
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