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Synonyms

moldy

American  
[mohl-dee] / ˈmoʊl di /

adjective

moldier, moldiest
  1. overgrown or covered with mold.

  2. musty, as from decay or age.

  3. Informal. old-fashioned; outmoded.

    moldy ideas about higher education.


moldy British  
/ ˈməʊldɪ /

adjective

  1. the US spelling of mouldy

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

  • moldiness noun
  • unmoldy adjective

Etymology

Origin of moldy

Middle English word dating back to 1350–1400; mold 2, -y 1

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Brekke calls it “the worst pit I’ve ever seen,” moldy and full of trash.

From Salon • Dec. 18, 2025

“And it’s especially hydrating — probably 2-3 bananas per can, which you can bring anywhere and you don’t have to worry about moldy bananas. And just 50 calories — Naked’s coconut water has 60.”

From Los Angeles Times • Dec. 15, 2025

The wider sweeps are stressing the capacity of the detention system, where detainees have reported moldy food, dirty towels and no changes of clothes for more than a week at a time.

From Los Angeles Times • Jun. 24, 2025

Pedro Pascal counts himself among the number who wish the "Harry Potter" author would leave her moldy house and touch grass.

From Salon • Apr. 25, 2025

The pots were moldy, and there was a small storage house.

From "A Long Way Gone: Memoirs of a Boy Soldier" by Ishmael Beah