definitions

rash

1
[ rash ]
/ ræʃ /
||
SEE MORE SYNONYMS FOR rash ON THESAURUS.COM

adjective, rash·er, rash·est.

acting or tending to act too hastily or without due consideration.
characterized by or showing too great haste or lack of consideration: rash promises.

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RELATED WORDS

impetuous, foolhardy, ill-considered, thoughtless, indiscreet, bold, hasty, daring, audacious, ill-advised, immature, imprudent, reckless, irrational, flood, eruption, epidemic, spate, wave, madcap

Nearby words

rascal, rascality, rascally, rascasse, rase, rash, rash shirt, rasher, rashi, rashid, rashida

Origin of rash

1
1350–1400; Middle English; cognate with Dutch, German rasch quick, brisk, Old Norse rǫskr brave

Related forms

rash·ly, adverbrash·ness, noun

Definition for rash (2 of 2)

rash

2
[ rash ]
/ ræʃ /

noun

an eruption or efflorescence on the skin.
a multitude of instances of something occurring more or less during the same period of time: a rash of robberies last month.

Origin of rash

2
1700–10; < French rache (obsolete), Old French rasche skin eruption, derivative of raschier to scratch, ultimately < Latin rādere to scratch

Related forms

rash·like, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for rash

British Dictionary definitions for rash (1 of 2)

rash

1
/ (ræʃ) /

adjective

acting without due consideration or thought; impetuous
characterized by or resulting from excessive haste or impetuositya rash word

Derived Forms

rashly, adverbrashness, noun

Word Origin for rash

C14: from Old High German rasc hurried, clever; related to Old Norse roskr brave

British Dictionary definitions for rash (2 of 2)

rash

2
/ (ræʃ) /

noun

pathol any skin eruption
a series of unpleasant and unexpected occurrencesa rash of forest fires

Derived Forms

rashlike, adjective

Word Origin for rash

C18: from Old French rasche, from raschier to scratch, from Latin rādere to scrape
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

Medicine definitions for rash

rash

[ răsh ]

n.

A skin eruption.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.