- (a.) Sharp at the end; ending in a sharp point; pointed; -- opposed to blunt or obtuse; as, an acute angle; an acute leaf.
- (a.) Having nice discernment; perceiving or using minute distinctions; penetrating; clever; shrewd; -- opposed to dull or stupid; as, an acute observer; acute remarks or reasoning.
- (a.) Having nice or quick sensibility; susceptible to slight impressions; acting keenly on the senses; sharp; keen; intense; as, a man of acute eyesight, hearing or feeling; acute pain or pleasure.
- (a.) High or shrill, in respect to some other sound; -- opposed to grave or low; as, an acute tone or accent.
- (a.) Attended with symptoms of some degree of severity, and coming speedily to a crisis; -- opposed to chronic; as, an acute disease.
- (v.t.) To give an acute sound to; as, he acutes his rising inflection too much.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). acute. Retrieved September 21, 2026, from http://smartdefine.org/acute/definitions/1970749 |
| Chicago | Webster's. 2011. "acute" http://smartdefine.org/acute/definitions/1970749 (accessed September 21, 2026). |
| Harvard | Webster's 2011, acute, Smart Define, viewed 21 September, 2026, <http://smartdefine.org/acute/definitions/1970749>. |
| MLA | Webster's. "acute" 27 May 2011. Web. 21 September 2026. <http://smartdefine.org/acute/definitions/1970749> |