Try Our Apps


90s Slang You Should Know


[mohl-dee] /ˈmoʊl di/
adjective, moldier, moldiest.
overgrown or covered with mold.
musty, as from decay or age.
Informal. old-fashioned; outmoded:
moldy ideas about higher education.
Origin of moldy
Middle English word dating back to 1350-1400; See origin at mold2, -y1
Related forms
moldiness, noun
unmoldy, adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
Cite This Source
Examples from the Web for moldy
Contemporary Examples
Historical Examples
  • Dreary enough it looked now, with its dismantled roof and wet and moldy bed of leaves.

    The Crest of the Continent Ernest Ingersoll
  • We put in nearly a week rummaging through that moldy old barracks.

    Shorty McCabe Sewell Ford
  • When unpacking the meat watch the brine to see that it is not ropy or moldy.

    Every Step in Canning Grace Viall Gray
  • The air was heavy and moldy; the sides of the cave wet and slippery.

  • He had not felt so before having actually in his possession the moldy, discolored leather suit-case, he reflected.

    The Auto Boys' Mystery James A. Braden
  • Is Dad going to spend the whole day in this moldy old museum?

  • Mr. Wade, your moldy old saw about a fool for a client was never more misplaced.

    Stepsons of Light Eugene Manlove Rhodes
British Dictionary definitions for moldy


adjective moldier, moldiest
the US spelling of mouldy
Derived Forms
moldiness, noun
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
Cite This Source
Word Origin and History for moldy

also mouldy, 1570s, earlier mowly (late 14c.), from mold (n.2) + -y (2). Related: Moldiness.

Online Etymology Dictionary, © 2010 Douglas Harper
Cite This Source

Word of the Day

Difficulty index for moldy

Some English speakers likely know this word

Word Value for moldy

Scrabble Words With Friends

Nearby words for moldy