|Origin:||, past participle of acuere 'to sharpen', from acus 'needle'|
an acute problem is very serious:
The housing shortage is more acute than first thought.
an acute feeling is very strong:
an acute illness or disease quickly becomes very serious [≠ chronic]:
acute senses such as hearing, taste, touch etc are very good and sensitive:
Young children have a particularly acute sense of smell.
quick to notice and understand things [= sharp]:
Simon's vague manner concealed an acute mind.
an acute analysis of Middle Eastern politics
an acute angle is less than 90º [↪ obtuse]
an acute accent (=a mark used to show pronunciation) is a small mark written above a vowel. In 'café', the letter 'e' has an acute accent [↪ grave, circumflex]
—acuteness noun [uncountable]