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a. Reacting readily to stimuli or impressions; sensitive: His hearing was unusually acute.
b. Keenly perceptive or discerning: an acute critic of music; a critic with acute judgment. See Synonyms at sharp.
2. Extremely sharp or severe; intense: acute pain; acute pleasure.
3. Of great importance or consequence; critical: an acute shortage of funds.
4. Medicine
a. Having a rapid onset and following a short but severe course: an acute disease.
b. Afflicted by a disease exhibiting a rapid onset followed by a short, severe course: acute patients.
5. High in pitch; shrill: an acute scream.
a. Narrowly pointed; sharp: an acute leaf.
b. Having an acute angle: an acute triangle.

[Latin acūtus, past participle of acuere, to sharpen, from acus, needle; see ak- in Indo-European roots.]

a·cute′ly adv.
a·cute′ness n.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.acuteness - a sensitivity that is keen and highly developed; "dogs have a remarkable acuteness of smell"
sensitivity, sensitiveness, sensibility - (physiology) responsiveness to external stimuli; the faculty of sensation; "sensitivity to pain"
2.acuteness - a quick and penetrating intelligenceacuteness - a quick and penetrating intelligence; "he argued with great acuteness"; "I admired the keenness of his mind"
intelligence - the ability to comprehend; to understand and profit from experience
steel trap - an acute intelligence (an analogy based on the well-known sharpness of steel traps); "he's as sharp as a steel trap"; "a mind like a steel trap"
3.acuteness - the quality of having a sharp edge or pointacuteness - the quality of having a sharp edge or point
keenness, sharpness - thinness of edge or fineness of point
obtuseness - the quality of lacking a sharp edge or point
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
skarpskyggni, næmleiki


[əˈkjuːtnɪs] N
1. (= keenness) [of vision, hearing, observation, analysis] → agudeza f
2. (= shrewdness) → perspicacia f, agudeza f
3. (Med) → gravedad f
Collins Spanish Dictionary - Complete and Unabridged 8th Edition 2005 © William Collins Sons & Co. Ltd. 1971, 1988 © HarperCollins Publishers 1992, 1993, 1996, 1997, 2000, 2003, 2005


[əˈkjuːtnɪs] n [mind] → perspicacité f; [hearing, eyesight] → acuité f
Collins English/French Electronic Resource. © HarperCollins Publishers 2005


(= intensity: of pleasure) → Intensität f
(= keenness) (of eyesight)Schärfe f; (of hearing, sense of smell)Feinheit f
(= shrewdness)Schärfe f; (of person)Scharfsinn m; (of child)Aufgewecktheit f
Collins German Dictionary – Complete and Unabridged 7th Edition 2005. © William Collins Sons & Co. Ltd. 1980 © HarperCollins Publishers 1991, 1997, 1999, 2004, 2005, 2007


(əˈkjuːt) adjective
1. (of a disease etc) severe but not lasting very long. They think his illness is acute rather than chronic.
2. very great. There is an acute shortage of teachers.
3. quick-witted. As a businessman, he's very acute.
4. (of the senses) keen. acute hearing.
5. high, shrill s high sound.
acute angle
an angle of less than ninety degrees.
aˈcutely adverb
aˈcuteness noun
Kernerman English Multilingual Dictionary © 2006-2013 K Dictionaries Ltd.
References in classic literature ?
Young though he was, my Grandson -- who was unusually intelligent for his age, and bred up in perfect reverence for the authority of the Circles -- took in the situation with an acuteness for which I was quite unprepared.
His pleasure in music, though it amounted not to that ecstatic delight which alone could sympathize with her own, was estimable when contrasted against the horrible insensibility of the others; and she was reasonable enough to allow that a man of five and thirty might well have outlived all acuteness of feeling and every exquisite power of enjoyment.
It was a queer thing to borrow a pocket- handkerchief, some will think; but I was lent to twenty people that night; and while in her hands, I overheard the following little aside, between two young fashionables, who were quite unconscious of the acuteness of the senses of our family.
Archer and Janey in the course of their continental travels, and displayed a supernatural acuteness in finding out when they were to pass through London on their way to or from the States.
The whole discourse was written with great acuteness, containing many observations, both curious and useful for politicians; but, as I conceived, not altogether complete.
Now that I look back I am more than ever impressed by Stroeve's acuteness. He saw from the first that here was a revolution in art, and he recognised in its beginnings the genius which now all the world allows.
Further, Jerry's own hearing was trained to still greater acuteness. Hours at a time, sitting by Nalasu or standing apart from him, he was taught to catch the slightest sounds or rustlings from the bush.
It is impossible to express with what acuteness I felt the convict's breathing, not only on the back of my head, but all along my spine.
You've been up to some trick, and you've been bribing him not to tell," said the Squire, with a sudden acuteness which startled Godfrey, who felt his heart beat violently at the nearness of his father's guess.
At the time, I set it down to some idiosyncratic, personal distaste, and merely wondered at the acuteness of the symptoms; but I have since had reason to believe the cause to lie much deeper in the nature of man, and to turn on some nobler hinge than the principle of hatred.
The ordinary sapper is a great deal better educated than the common soldier, and they discussed the peculiar conditions of the possible fight with some acuteness. I described the Heat-Ray to them, and they began to argue among themselves.
More was not expected by one who, while seeing all the obligation and expediency of submission and forbearance, saw also with sympathetic acuteness of feeling all that must be hourly grating to a girl like Susan.