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

The inspector found a moldy Serrano pepper, raw meat stored above ready-to-eat food and several foods stored at an unsafe temperature. — Harriet Ramos, Fort Worth Star-Telegram, 15 Aug. 2026

That might mean advocacy to address a moldy home, access to safe green spaces, or trusted local advice in times of crisis. — Kyle Vanelli, STAT, 14 Aug. 2026

Sailors reportedly face moldy conditions, food shortages, and lack basic necessities, raising mental health concerns. — Peter Suciu, Forbes.com, 6 Aug. 2026

Additionally, health inspectors cited four eateries for violations including moldy bell peppers and rodent droppings. — Veronica Fernandez-Alvarado july 17, Sacbee.com, 17 July 2026

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