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adjective, crass·er, crass·est.
  1. without refinement, delicacy, or sensitivity; gross; obtuse; stupid: crass commercialism; a crass misrepresentation of the facts.
  2. Archaic. thick; coarse.

Origin of crass

1535–45; (< Middle French) < Latin crassus thick, dense, fat, heavy
Related formscrass·ly, adverbcrass·ness, noun


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1. dull, boorish, oafish, indelicate.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for crassest

Historical Examples

  • Therefore "the recognition of any special laws is a sign of the crassest ignorance."


    Paul Eltzbacher

  • I said I'd risk appearing the crassest, contradictoriest wretch that ever drew breath.

    The Return

    Walter de la Mare

  • Common-sense truthfulnessTell us, at Christmas, youth's crassest of crass ages.

  • For four hundred years Israel had dwelt in Egypt, surrounded by the crassest idolatry.

British Dictionary definitions for crassest


  1. stupid; gross
Derived Formscrassly, adverbcrassness or crassitude, noun

Word Origin

C16: from Latin crassus thick, dense, gross
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 crassest



1540s, from Middle French crasse (16c.), from Latin crassus "solid, thick, fat; dense." The literal sense always has been rare in English; meaning "grossly stupid" is recorded from 1650s, from French. Related: Crassly; crassness.

Online Etymology Dictionary, © 2010 Douglas Harper