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adj. Having a sharp point or tip.

adj. Keenly perceptive or discerning: "a raw, chilling and psychologically acute novel of human passions reduced to their deadliest essence” ( Literary Guild Magazine). See Synonyms at sharp.

adj. Reacting readily to stimuli or impressions; sensitive: His hearing was unusually acute.

adj. Of great importance or consequence; crucial: an acute lack of research funds.

adj. Extremely sharp or severe; intense: acute pain; acute relief.

adj. Medicine Having a rapid onset and following a short but severe course: acute disease.

adj. Medicine Afflicted by a disease exhibiting a rapid onset followed by a short, severe course: acute patients.

adj. Music High in pitch; shrill.

adj. Geometry Having an acute angle: an acute triangle.

adj. Urgent.

adj. sensitive

adj. Short, quick.

adj. Of an angle, less than 90 degrees.

adj. Of a triangle, having all three interior angles measuring less than 90 degrees.

adj. With the sides meeting directly to form a pointed acute angle at the apex, base, or both.

adj. Of an abnormal condition of recent or sudden onset, in contrast to delayed onset; this sense does not imply severity (unlike the common usage).

adj. Of a short-lived condition, in contrast to a chronic condition; this sense also does not imply severity.

adj. Having an acute accent.

n. An acute accent.

v. To give an acute sound to.

adj. Sharp at the end; ending in a sharp point; pointed; -- opposed to blunt or obtuse

adj. Having nice discernment; perceiving or using minute distinctions; penetrating; clever; shrewd; -- opposed to dull or stupid

adj. Having nice or quick sensibility; susceptible to slight impressions; acting keenly on the senses; sharp; keen; intense

adj. High, or shrill, in respect to some other sound; -- opposed to grave or low.

adj. Attended with symptoms of some degree of severity, and coming speedily to a crisis; -- opposed to chronic.

v. To give an acute sound to.

Sharp at the end; ending in a sharp point or angle: opposed to blunt or obtuse.

Sharp or penetrating in intellect; possessing keenness of insight or perception; exercising nice discernment or discrimination: opposed to dull or stupid: as, “the acute and ingenious author,” Locke.

Manifesting intellectual keenness or penetration; marked or characterized by quickness of perception or nice discernment: applied to mental endowments and operations: as, acute faculties or arguments.

Having nice or quick sensibility; susceptible of slight impressions; having power to feel or perceive small or distant objects or effects: as, a man of acute eyesight, hearing, or feeling.

Keen; sharp; intense; poignant: said of pain, pleasure, etc.

High in pitch; shrill: said of sound: opposed to grave. See acute accent, below.

In pathology, attended with more or less violent symptoms and coming speedily to a crisis: applied to a disease: as, an acute pleurisy: distinguished from subacute and chronic.

A mark (′ ) used to denote accentual stress, and also for other purposes. To denote stress in English, it is now generally placed after the accented syllable, as in this dictionary, but sometimes over the vowel of that syllable. The latter is done regularly in such Greek words as take this accent, and in all Spanish words the accentuation of which varies from the standard rule. In some languages it is used only to determine the quality or length of vowel-sounds, as on e in French (as in été), and on all the vowels in Hungarian; and in Polish and other Slavic languages it is also placed over some of the consonants to mark variations of their sounds. For other uses, see accent, n.

Keen may be the most objective of these words. An acute answer is one that shows penetration into the subject; a keen answer unites with acuteness a certain amount of sarcasm, or antagonism to the person addressed; a shrewd answer is one that combines remarkable acuteness with wisdom as to what it is practically best to say.

Shrewd differs from acute and keen by having an element of practical sagacity or astuteness. Only keen has the idea of eagerness: as, he was keen in pursuit. See astute and sharp.

To render acute in tone.

adj. extremely sharp or intense

n. a mark (') placed above a vowel to indicate pronunciation

adj. of critical importance and consequence

adj. ending in a sharp point

adj. having or experiencing a rapid onset and short but severe course

adj. of an angle; less than 90 degrees

adj. having or demonstrating ability to recognize or draw fine distinctions

"Understand indications for surgical and orthopaedic consultation in acute and chronic rheumatic diseases"

sharp    critical    pointed    subacute    perceptive   

chronic   

accent mark    accent   

acute angle    acute ascending paralysis    acute accent    acute bisectrix   

acuteness    acute accent    acutance    acuity    acute-angled   

sharp-witted    sharp    sagacious    discriminating    discerning    ingenious    keen    penetrating    subtile    shrewd   

Beirut    Bute    Butte    Jute    Root    Shute    absolut    astute    boot    brut   

chronic    severe    keen    serious    vivid