[ brash ]
See synonyms for: brashbrashesbrashlybrashness on

adjective,brash·er, brash·est.Also brashy .
  1. impertinent; impudent; tactless: a brash young man.

  1. energetic or highly spirited, especially in an irreverent way; zesty: a brash new musical.

  2. (used especially of wood) brittle.

  1. a pile or stack of loose fragments or debris, as of rocks or hedge clippings.

  1. Pathology. heartburn (def. 1).

  2. Scot. and North England Dialect.

    • a sudden shower or burst of rain.

    • any sudden, minor sickness or indisposition, especially of the digestive tract.

    • an assault; attack.

Origin of brash

First recorded in1400–50; (noun) late Middle English brass(c)he “a slap, crash,” perhaps blend of brok(e) (Old English broc “breach, fragment, sickness”; akin to break) and dasch “smashing blow”; see dash1; (adjective) in the sense “brittle” is derivative of the noun; in the sense “hasty” by confusion with rash1

Other words for brash

Opposites for brash

Other words from brash

  • brash·ly, adverb
  • brash·ness, noun Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use brash in a sentence

  • This was a victory that could only have been won by a political movement with a brashly irrational self-confidence.

  • He had not started the journey brashly, on impulse, but after debate and discussion with Mandy, his wife.

    Scattergood Baines | Clarence Budington Kelland
  • At first, I was brashly incredulous, as anyone would be who was mixing and mingling with the colonel in the daily amenities.

    The King of Arcadia | Francis Lynde

British Dictionary definitions for brash (1 of 3)


/ (bræʃ) /

  1. tastelessly or offensively loud, showy, or bold

  2. hasty; rash

  1. impudent

Origin of brash

C19: perhaps influenced by rash 1

Derived forms of brash

  • brashly, adverb
  • brashness, noun

British Dictionary definitions for brash (2 of 3)


/ (bræʃ) /

  1. loose rubbish, such as broken rock, hedge clippings, etc; debris

Origin of brash

C18: of unknown origin

British Dictionary definitions for brash (3 of 3)


/ (bræʃ) /

  1. pathol another name for heartburn

Origin of brash

C16: perhaps of imitative origin

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