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

In This Article What Causes Mold On Bread? Risks Of Eating Moldy Bread What To Do If Your Bread Is Moldy How To Keep Bread Fresh Longer Discovering a single slice of moldy bread in your loaf can present a dilemma. —Katie Rosenhouse, Southern Living, 18 Apr. 2025

There are several health risks that can occur from moldy showers like allergic reactions, respiratory illnesses, and other irritations. —Ashlyn Needham, Southern Living, 19 Apr. 2025

This guide explains why seedlings often get moldy indoors, and simple ways to treat and prevent mold issues so your seedlings can thrive. —Lauren Landers, Better Homes & Gardens, 12 Apr. 2025

The chain pizza restaurant was cited after inspectors noted moldy residue on equipment. —Camila Pedrosa, Sacbee.com, 11 Apr. 2025

Word History

First Known Use

14th century, in the meaning defined at sense 1

Rhymes for moldy

• mouldy
• soldi

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