acute

/'əkju:t/
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acute

An acute angle is formed where two straight lines meet.

Definition
  1. Adjective:

    • Extremely sharp or intense: Used to describe pain, sensations, or feelings that are very severe and sudden.
    • Having or demonstrating a keen ability to perceive or distinguish: Describes a person, mind, or observation that is very perceptive, insightful, and sharp.
    • Of critical importance and consequence: Describes a situation, shortage, or problem that is severe and urgent.
    • Ending in a sharp point: Describes a physical shape that comes to a sharp end.
    • Of an angle; less than 90 degrees: A geometric term for an angle smaller than a right angle.
    • Having a rapid onset and short but severe course: A medical term describing a disease or condition that appears suddenly and is intense but often short-lived.
    • High-pitched; shrill: Describes a sound, especially a voice, that is high and sharp in tone.
  2. Noun:

    • A mark (') placed above a vowel to indicate pronunciation: In linguistics, a diacritical mark used in some languages to denote a specific sound quality or stress.
Usage Examples
  • Adjective:

    • The patient was suffering from acute pain in his side. (Describing severe, sharp pain.)
    • She has an acute understanding of international markets. (Describing a sharp, perceptive mind.)
    • The hospital is facing an acute shortage of nurses. (Describing a severe and urgent problem.)
    • Be careful with the acute tip of the needle. (Describing a sharp point.)
    • An acute angle measures less than 90 degrees. (Describing a type of angle.)
    • He was diagnosed with acute bronchitis. (Describing a sudden, severe illness.)
    • The child's acute scream made everyone turn around. (Describing a high-pitched sound.)
  • Noun:

    • In French, the letter 'é' has an acute accent. (Referring to the diacritical mark.)
Advanced Usage
  • "Acute care": A branch of secondary health care where a patient receives active but short-term treatment for a severe injury or episode of illness.

    • After the accident, he was moved to the acute care unit.
  • "Acute awareness": A state of being highly and sensitively conscious of something.

    • The hiker had an acute awareness of the changing weather conditions.
Variants and Related Words
  • Acutely (adverb): In an acute manner; intensely or sharply.

    • She was acutely aware of being watched.
  • Acuteness (noun): The quality of being acute.

    • The acuteness of his hearing was remarkable.
Synonyms
  • Adjective: Sharp, intense, severe, keen, perceptive, critical, piercing, shrewd.
  • Noun: Accent, diacritic, diacritical mark.
Antonyms
  • Adjective: Dull, mild, chronic (in medical contexts), obtuse (for angles), low-pitched (for sound).
Related Phrases
  • Acute stress: Intense psychological stress following a traumatic event.

    • The soldiers experienced acute stress after the battle.
  • Acute phase: The initial, most severe stage of an illness or reaction.

    • The medication is most effective during the acute phase of the infection.
acute

An acute angle is formed where two straight lines meet.

Adjective
  1. of critical importance and consequence
    • an acute (or critical) lack of research funds
  2. ending in a sharp point
  3. of an angle; less than 90 degrees
  4. having or demonstrating ability to recognize or draw fine distinctions
    • an acute observer of politics and politicians
    • incisive comments
    • icy knifelike reasoning
    • as sharp and incisive as the stroke of a fang
    • penetrating insight
    • frequent penetrative observations
  5. extremely sharp or intense
    • acute pain
    • felt acute annoyance
    • intense itching and burning
  6. having or experiencing a rapid onset and short but severe course
    • acute appendicitis
    • the acute phase of the illness
    • acute patients
Noun
  1. a mark (') placed above a vowel to indicate pronunciation