- (of an angle) less than 90°.
- (of a triangle) containing only acute angles.
Origin of acute
Synonyms for acute
Antonyms for acute
- (of an angle) less than 90°
- (of a triangle) having all its interior angles less than 90°
- arising suddenly and manifesting intense severity
- of relatively short durationCompare chronic (def. 2)
- (of a vowel or syllable in some languages with a pitch accent, such as ancient Greek) spoken or sung on a higher musical pitch relative to neighbouring syllables or vowels
- of or relating to an accent (´) placed over vowels, denoting that the vowel is pronounced with higher musical pitch (as in ancient Greek), with a certain special quality (as in French), etcCompare (for senses 8a, 8b): grave, circumflex
Word Origin for acute
late 14c., originally of fevers and diseases, "coming and going quickly" (opposed to a chronic), from Latin acutus "sharp, pointed," figuratively "shrill, penetrating; intelligent, cunning," past participle of acuere "sharpen" (see acuity). Meaning "sharp, irritating" is from early 15c. Meaning "intense" is from 1727. Related: Acutely; acuteness.