There are 2 main definitions of rash in English:

rash1

Syllabification: rash
Pronunciation: /raSH
 
/

adjective

Displaying or proceeding from a lack of careful consideration of the possible consequences of an action: it would be extremely rash to make such an assumption a rash decision
More example sentences
  • Have we really thought through the consequences of rash action now?
  • The reformist troops weren't rash or impetuous enough to do something so drastic without direct orders.
  • So in reality her quick thinking and rash acting had caused Jeff to faint.
Synonyms

Origin

late Middle English (also in Scots and northern English in the sense 'nimble, eager'); related to German rasch.

Derivatives

rashly

adverb
More example sentences
  • But one of my faults is that I can act hastily and rashly.
  • He did not know why he rashly and impulsively went back to his old ways and took part in the burglary.
  • ‘Don't jump into the river rashly if you can't swim - it's better to call for help,’ the letter said.

rashness

noun
More example sentences
  • Barth had the foolishness and rashness of the child that he was, quick to anger, slow to forgive, filled to the brim with pointless pride.
  • One opposite to courage is cowardice, but another is rashness, foolhardiness.
  • Better to try and fail than not to try at all, was his response to those who accused him of rashness and irresponsibility.

Definition of rash in:

Get more from Oxford Dictionaries

Subscribe to remove ads and access premium resources

There are 2 main definitions of rash in English:

rash2

Syllabification: rash
Pronunciation: /raSH
 
/

noun

1An area of reddening of a person’s skin, sometimes with raised spots, appearing especially as a result of allergy or illness.
More example sentences
  • In a few cases, major skin rashes appeared 12-24 hr following exposure.
  • Certain inflammatory diseases can affect your skin, causing rashes and lesions.
  • Prickly heat is a very itchy red skin rash, causing a prickling or burning feeling.
Synonyms
spots, a breakout, an eruption;
hives;
1.1A series of things of the same type, especially when unpleasant or undesirable, occurring or appearing one after the other within a short space of time: a rash of auto accidents
More example sentences
  • The run-up to the 30th anniversary produced a rash of new revelations and bitter polemics.
  • The rash of strikes on the railways and elsewhere should quickly disabuse them of that delusion.
  • Just like they said when those very same refineries were shut down because of a rash of accidents, it was going to cost us.
Synonyms
series, succession, spate, wave, flood, deluge, torrent;

Origin

early 18th century: probably related to Old French rasche 'eruptive sores, scurf'; compare with Italian raschia 'itch'.

Definition of rash in: