Rash definition

răsh
Too hasty or incautious in acting or speaking; reckless.
adjective
3
1
Resulting from or acting with ill-considered haste or boldness.
adjective
3
2
A visible lesion or group of lesions on the skin, caused by any of numerous factors including infectious agents, drugs, and allergies.
noun
3
2
The definition of rash is something done or said too fast.

An example of rash used as an adjective is a rash decision, a decision made without any consideration of the consequences.

adjective
1
0
A visible lesion or group of lesions on the skin, caused by any of numerous factors including infectious agents, drugs, and allergies.
noun
1
0
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An outbreak of many instances within a brief period.

A rash of burglaries.

noun
1
1
Rash is defined as a sudden outbreak of something.

An example of rash is an allergic reaction to poison oak.

An example of rash is a large number of complaints received from neighbors very quickly after a loud party started.

noun
0
0
Characterized by too great haste or recklessness.

A rash act.

adjective
0
0
(obs.) Bringing quick results.
adjective
0
0
An eruption of spots on the skin, usually temporary.
noun
0
0
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A sudden appearance of a large or excessive number of instances.

A rash of complaints.

noun
0
0
A surname​.
pronoun
0
0

Other Word Forms

Noun

Singular:
rash
Plural:
rashes

Adjective

Base Form:
rash
Comparative:
rasher
Superlative:
rashest

Origin of rash

  • Possibly from obsolete French rache a sore from Old French rasche scurf from raschier to scrape, scratch from Vulgar Latin rāsicāre from Latin rāsus past participle of rādere rēd- in Indo-European roots

    From American Heritage Dictionary of the English Language, 5th Edition

  • Middle English rasch active, unrestrained perhaps from Old English -raesc (in līgræsc lightning) or from Middle Dutch or Middle Low German rasch fast

    From American Heritage Dictionary of the English Language, 5th Edition