rash
UK: ræʃ | US: ræʃ
adj. acting or done without careful consideration; impulsive
n. a series of unpleasant or undesirable events occurring in a short time
n. (medical) an area of red spots on the skin, often caused by illness or allergy
The word "rash" traces back to Old English ræsc, meaning "quick" or "vigorous," reflecting haste or lack of deliberation. Over time, it evolved to describe impulsive actions (adjective) and later extended to medical contexts (noun) for sudden skin eruptions, metaphorically linking speed to uncontrolled outbreaks.
Don’t make rash decisions without evaluating the consequences.
A rash of burglaries has alarmed the neighborhood.
She developed a rash after touching poison ivy.
His rash behavior led to an avoidable accident.
The doctor diagnosed the red spots as an allergic rash.