See more synonyms for spongy on Thesaurus.com
adjective, spon·gi·er, spon·gi·est.
  1. of the nature of or resembling a sponge; light, porous, and elastic or readily compressible, as pith or bread.
  2. having the absorbent characteristics of a sponge; absorbing or holding liquid or yielding liquid when pressed.
  3. of or relating to a sponge.
  4. lacking in firmness or solidity: spongy wood; a spongy feeling from the car brakes.
  5. moist and soft; soggy: spongy ground.
  6. porous but hard, as bone.

Origin of spongy

First recorded in 1530–40; sponge + -y1
Related formsspon·gi·ly, adverbspon·gi·ness, nounun·spong·y, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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British Dictionary definitions for spongy


adjective -gier or -giest
  1. of or resembling a sponge, esp in texture, porosity, elasticity, or compressibilityspongy bread; spongy bone
  2. of or like a sponge in respect of its capacity to absorb fluid and yield it when compressed
Derived Formsspongily, adverbsponginess, 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

Word Origin and History for spongy

"soft, elastic," 1530s, from sponge (n.) + -y (2). Related: Sponginess.

Online Etymology Dictionary, © 2010 Douglas Harper

spongy in Medicine


  1. Resembling a sponge in appearance, elasticity, or porosity.
Related formsspongi•ness n.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.