moldy

adjective

ˈmōl-dē 

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

Yes, composting worms can eat old bread that’s gone stale, but moldy bread should not be added to worm bins. —Lauren Landers, Better Homes & Gardens, 2 Dec. 2024

Springtails Springtails are another group of insects that feed on moldy materials. —Arricca Elin Sansone, Southern Living, 21 Nov. 2024

These pests are often found in moldy foods or foods with a high moisture content. —Arricca Elin Sansone, Southern Living, 23 Sep. 2024

And there's nothing that looks worse (or smells worse) than a soft or moldy pumpkin sitting on your porch. —Zach Bradshaw, The Arizona Republic, 18 Oct. 2024

Word History

First Known Use

14th century, in the meaning defined at sense 1

Kids Definition

moldy

adjective

ˈmōl-dē 

moldier; moldiest

: resembling, containing, or covered with mold

moldiness noun

Medical Definition

moldy

adjective

variants or chiefly British mouldy

ˈmōl-dē 

moldier or chiefly British mouldier; mouldiest

: covered with a mold-producing fungus

moldy bread