rash

noun
\ ˈrash How to pronounce rash (audio) \

Definition of rash

 (Entry 1 of 3)

1 : an eruption on the body
2 : a large number of instances in a short period a rash of complaints

rash

adjective

Definition of rash (Entry 2 of 3)

1 : marked by or proceeding from undue haste or lack of deliberation or caution a rash promise
2 obsolete : quickly effective

rash

adverb

Definition of rash (Entry 3 of 3)

archaic
: in a rash manner

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Other Words from rash

Adjective

rashly adverb
rashness noun

Choose the Right Synonym for rash

Adjective

adventurous, venturesome, daring, daredevil, rash, reckless, foolhardy mean exposing oneself to danger more than required by good sense. adventurous implies a willingness to accept risks but not necessarily imprudence. adventurous pioneers venturesome implies a jaunty eagerness for perilous undertakings. venturesome stunt pilots daring implies fearlessness in courting danger. daring mountain climbers daredevil stresses ostentation in daring. daredevil motorcyclists rash suggests imprudence and lack of forethought. a rash decision reckless implies heedlessness of probable consequences. a reckless driver foolhardy suggests a recklessness that is inconsistent with good sense. the foolhardy sailor ventured into the storm

Did You Know?

Adjective

The earliest known uses of "rash" (then spelled "rasch") occur in a northern dialect of 15th-century Middle English. Its earlier origins are not known for sure, though it is clearly related to a number of similar words in the Germanic languages, including Old High German rasc ("fast, hurried, strong, clever"), Old Norse "röskr" ("brave, vigorous"), and Middle Dutch "rasch" ("quick, nimble, agile, vigorous"). It is not, however, related to the English noun "rash" ("an eruption on the body," as in a "skin rash"). The noun "rash," which first appeared in English in the 1700s, comes by way of French and Vulgar Latin from Latin rasus, the past participle of "radere" ("to scrape" or "to shave").

Examples of rash in a Sentence

Noun

The baby has a skin rash. The doctor said she developed the rash because of the medicine. I break out in a rash if I eat shellfish. Symptoms of the disease include rash and fever. There has been a rash of robberies in the city this summer.

Adjective

Their rash actions resulted in a serious accident that could have killed someone. Don't be rash about this decision. Take your time. It was rash of you to make that promise.
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Recent Examples on the Web: Noun

These typically appear before the trademark red rash. Caroline Picard, Good Housekeeping, "The Measles Signs in Kids Every Parent Needs to Know About," 3 Apr. 2019 King Lear may be more than 400 years old, but Shakespeare’s tragedy—the story of a rash monarch blinded by ego and flattery, tangled in a destructive family drama, and brought down by his own bad judgment—seems to be more relevant than ever. Maureen Dowd, Town & Country, "Glenda Jackson as King Lear Is the Mad King For Our Age," 21 Mar. 2019 The mildest cases of Lyme cause a circular rash, while serious infections can affect the heart or nervous system, sometimes causing death in vulnerable patients. Jennifer Walter, Milwaukee Journal Sentinel, "The Tick App offers resources to identify, remove ticks as part of Lyme disease study," 3 July 2018 But the worms can also burrow into human skin and cause a rash before the misguided parasites die. Rachel Becker, The Verge, "There might be poop in the water you’re swimming in so please don’t swallow it, CDC says," 29 June 2018 There had been a rash of injuries that put a lot of the foundational pieces of the Carroll Era on the shelf. Albert Breer, SI.com, "For Pete Carroll’s Seahawks, It’s Time to Compete Again," 11 June 2018 Cellulitis can cause a painful, red, tender, swollen rash that may blister and scab over, the U.S. National Library of Medicine says. Korin Miller, SELF, "5 Belly Button Infections You Can Get (and What to Do If You Have One)," 23 Feb. 2019 People have long sought relief from eczema—the itchy, scaly, rash-causing skin disorder that affects one in 10 Americans—in lotions, cleansing creams and special soaps. Susan Kitchens, WSJ, "Bacteria May Offer New Hope for Treating Skin Disorders," 5 Feb. 2019 The state of Massachusetts has issued a public health alert over a rash of hepatitis A cases that have left one person dead and 64 others sickened since April. Alexandria Hein, Fox News, "Hepatitis A outbreak in Massachusetts kills 1, sickens 64 others," 25 Sep. 2018

Recent Examples on the Web: Adjective

When Smith was rash enough to commend the architecture of Glasgow, . . Deirdre Mccloskey, WSJ, "‘Adam Smith: Father of Economics’ Review: Obvious, Simple and Wise," 7 Sep. 2018 The stories As trade deadline nears for Marlins, team won't 'do anything rash, nothing emotional,' Michael Hill says The attendance Wednesday night: 5,265 Season average: 9,496 Telling numbers 860. Matthew Defranks, Sun-Sentinel.com, "A Closer Look: Miami Marlins 5, Milwaukee Brewers 4 (12 innings)," 12 July 2018 That sounds rash, but a decision to part with Baker Hughes might indicate even greater desperation—a sign that the power business’s recovery is even farther off or that the insurance business needs more capital. Spencer Jakab, WSJ, "GE Should Hang On to Baker Hughes," 6 June 2018 As the mother got confrontational with police, the father, 54-year-old Gary Davis, initially tried to keep her from doing anything too rash, WBAL reports. Jared Gilmour, miamiherald, "Husband, wife and son tackled, choked and punched cops — and each other, Baltimore police say," 6 June 2018 The summit was the product of Trump’s own misunderstanding and rash decision-making in the first place, and not in any way coordinated with our allies or other key players in East Asia (i.e., China). Jonah Shepp, Daily Intelligencer, "Trump’s Credibility Problem Is Now America’s," 26 May 2018 Researchers think that in some cases the resulting chemical influx modifies the brain in a way that makes risks and rewards—say, those in a game of poker—more appealing and rash decisions more difficult to resist. Ferris Jabr, Scientific American, "How the Brain Gets Addicted to Gambling," 14 May 2018 Such rash decision-making does leave you to question their motives. Joseph Gerth, The Courier-Journal, "Bevin's education chief changed the recommendation for a JCPS takeover," 11 May 2018 But working to make our country stronger does not mean making rash economic decisions that could have long-term negative consequences for our economy. Gary Shapiro, Fortune, "Commentary: We Need a Reset With China, Not a Trade War," 6 Apr. 2018

Recent Examples on the Web: Adverb

Whatever is causing the left-hander to pitch terribly away from home this season, the Giants need to address this road rash sooner rather than later. Andrew Baggarly, The Mercury News, "Matt Moore implodes, Giants crushed 13-5 at Dodger Stadium," 2 May 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'rash.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of rash

Noun

1696, in the meaning defined at sense 1

Adjective

1509, in the meaning defined at sense 1

Adverb

15th century, in the meaning defined above

History and Etymology for rash

Noun

probably borrowed from 17th-century French rache, rasche, going back to Middle French raiche "tinea," noun derivative of racher "to chisel, groove (metal)" (probably also "to scrape, scratch," senses attested in Romance cognates), going back to Vulgar Latin *rāsicāre, verb derivative from Latin rās-, participial and nominal stem of rādere "to scrape, scratch, shave" — more at rase

Adverb

Middle English (northern dialect) rasch quickly; akin to Old High German rasc fast

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Dictionary Entries near rash

rase

raser

rasgado

rash

rasher

rashing

Rasht

Statistics for rash

Last Updated

9 Apr 2019

Look-up Popularity

Time Traveler for rash

The first known use of rash was in the 15th century

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More Definitions for rash

rash

noun

English Language Learners Definition of rash

 (Entry 1 of 2)

: a group of red spots on the skin that is caused by an illness or a reaction to something
: a series of usually unpleasant things or events that happen in a short period of time

rash

adjective

English Language Learners Definition of rash (Entry 2 of 2)

: done or made quickly and without thought about what will happen as a result
: doing something quickly and without thinking carefully about what will happen as a result

rash

adjective
\ ˈrash How to pronounce rash (audio) \

Kids Definition of rash

 (Entry 1 of 2)

: done or made quickly and without thought of the likely result a rash decision

Other Words from rash

rashly adverb
rashness noun

rash

noun

Kids Definition of rash (Entry 2 of 2)

1 : a breaking out of the skin with red spots (as from illness or an allergic reaction)
2 : a series of bad things that happen in a short time a rash of fires

rash

noun
\ ˈrash How to pronounce rash (audio) \

Medical Definition of rash

: an eruption on the body typically with little or no elevation above the surface

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More from Merriam-Webster on rash

Rhyming Dictionary: Words that rhyme with rash

Thesaurus: All synonyms and antonyms for rash

Spanish Central: Translation of rash

Nglish: Translation of rash for Spanish Speakers

Britannica English: Translation of rash for Arabic Speakers

Britannica.com: Encyclopedia article about rash

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