rash
1 Americanadjective
-
acting or tending to act too hastily or without due consideration.
- Synonyms:
- foolhardy, indiscreet, precipitate, incautious, venturous, reckless, impetuous, hasty
- Antonyms:
- cautious
-
characterized by or showing too great haste or lack of consideration.
rash promises.
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.
adjective
-
acting without due consideration or thought; impetuous
-
characterized by or resulting from excessive haste or impetuosity
a rash word
noun
-
pathol any skin eruption
-
a series of unpleasant and unexpected occurrences
a rash of forest fires
Usage
What does rash mean? Rash describes acting too quickly and without proper planning, as in James was rash when he decided to quit his job after just one hard day.Rash also describes a great haste or a lack of consideration, such as Sahad avoided making rash decisions by doing a lot of research first. A rash is a skin condition, such as bumps or a red area, like you might get if you touch poison ivy.A rash is also several instances of something that occur at the same or nearly the same time, such as a rash of snowstorms over a week or a rash of electronic sales during the winter holidays.Example: He always jumps head first into rash decisions, but sometimes it works out.
Other Word Forms
- rashlike adjective
- rashly adverb
- rashness noun
Etymology
Origin of rash1
First recorded in 1350–1400; Middle English; cognate with Dutch, German rasch “quick, brisk,” Old Norse rǫskr “brave”
Origin of rash2
1700–10; < French rache (obsolete), Old French rasche skin eruption, derivative of raschier to scratch, ultimately < Latin rādere to scratch
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
But villagers who repurposed the empty barrels for storing water or food or washing clothes reported rashes, vomiting and other symptoms.
If you develop symptoms like fever, cough, runny nose, red eyes or a rash, stay home and avoid school, work and gatherings.
From Los Angeles Times
His face had begun to blotch with a red raised rash.
From Literature
![]()
Itchy skin, rashes, an ear infection and bowel troubles sent us to the vet every few weeks.
It causes itching, especially at night, as well as a raised rash or spots which usually spread across the whole body.
From BBC
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.