VS.

Acute vs. Obtuse

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  • Acute (adjective)

    Brief, quick, short.

    "fast|rapid"

    "leisurely|slow"

    "It was an acute event."

  • Acute (adjective)

    High or shrill.

    "an acute accent or tone"

  • Acute (adjective)

    Intense, sharp.

    "keen|powerful|strong"

    "dull|obtuse|slow|witless"

    "She had an acute sense of honour."

    "Eagles have very acute vision."

  • Acute (adjective)

    Urgent.

    "emergent|pressing|sudden"

    "His need for medical attention was acute."

  • Acute (adjective)

    With the sides meeting directly to form an acute angle (at an apex or base).

    "obtuse"

  • Acute (adjective)

    Of an angle: less than 90 degrees.

    "obtuse"

  • Acute (adjective)

    Of a interior angles measuring less than 90 degrees.

    "acute-angled"

    "obtuse|obtuse-angled"

  • Acute (adjective)

    Of an accent or tone: generally higher than others.

  • Acute (adjective)

    Of an condition of delayed onset; this sense does not imply severity, unlike the common usage.

    "He dropped dead of an acute illness."

  • Acute (adjective)

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

    "chronic"

    "The acute symptoms resolved promptly."

  • Acute (adjective)

    After a letter of the alphabet: having an acute accent.

    "The last letter of ‘café’ is ‘e’ acute."

  • Acute (noun)

    A person who has the acute form of a disorder, such as schizophrenia.

  • Acute (noun)

    An accent or tone higher than others.

    "grave"

  • Acute (noun)

    An acute accent (´).

    "The word ‘cafe’ often has an acute over the ‘e’."

  • Acute (verb)

    To give an acute sound to.

    "He acutes his rising inflection too much."

  • Acute (verb)

    To make acute; to whet.

  • Obtuse (adjective)

    ; not sharp, pointed, or acute in form.

  • Obtuse (adjective)

    Blunt, or rounded at the extremity.

  • Obtuse (adjective)

    One that is larger than one and smaller than two right angles, or more than 90° and less than 180°.

  • Obtuse (adjective)

    Intellectually dull or dim-witted.

  • Obtuse (adjective)

    Of sound, etc.: deadened, muffled, muted.

  • Obtuse (adjective)

    Indirect or circuitous.

  • Obtuse (verb)

    To dull or state.

Wiktionary
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  • Acute (adjective)

    (of an unpleasant or unwelcome situation or phenomenon) present or experienced to a severe or intense degree

    "an acute housing shortage"

    "the problem is acute and getting worse"

  • Acute (adjective)

    (of a disease or its symptoms) severe but of short duration

    "acute appendicitis"

  • Acute (adjective)

    denoting or designed for patients with an acute form of a disease

    "an acute ward"

    "acute patients"

  • Acute (adjective)

    having or showing a perceptive understanding or insight; shrewd

    "an acute awareness of changing fashions"

  • Acute (adjective)

    (of a physical sense or faculty) highly developed; keen

    "an acute sense of smell"

  • Acute (adjective)

    (of an angle) less than 90°.

  • Acute (adjective)

    having a sharp end; pointed.

  • Acute (adjective)

    (of a sound) high; shrill.

  • Acute (noun)

    short for acute accent

  • Obtuse (adjective)

    annoyingly insensitive or slow to understand

    "he wondered if the doctor was being deliberately obtuse"

  • Obtuse (adjective)

    difficult to understand, especially deliberately so

    "some of the lyrics are a bit obtuse"

  • Obtuse (adjective)

    (of an angle) more than 90° and less than 180°

    "an obtuse angle of 150°"

  • Obtuse (adjective)

    not sharp-pointed or sharp-edged; blunt

    "it had strange obtuse teeth"

Oxford Dictionary
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  • Acute (adjective)

    Sharp at the end; ending in a sharp point; pointed; - opposed to blunt or obtuse; as, an acute angle; an acute leaf.

  • Acute (adjective)

    Having nice discernment; perceiving or using minute distinctions; penetrating; clever; shrewd; - opposed to dull or stupid; as, an acute observer; acute remarks, or reasoning.

  • Acute (adjective)

    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.

  • Acute (adjective)

    High, or shrill, in respect to some other sound; - opposed to grave or low; as, an acute tone or accent.

  • Acute (adjective)

    Attended with symptoms of some degree of severity, and coming speedily to a crisis; - opposed to chronic; as, an acute disease.

  • Acute

    To give an acute sound to; as, he acutes his rising inflection too much.

  • Obtuse (adjective)

    Not pointed or acute; blunt; - applied esp. to angles greater than a right angle, or containing more than ninety degrees.

  • Obtuse (adjective)

    Not having acute sensibility or perceptions; not alert, especially to the feelings of others; dull; stupid; as, obtuse senses.

  • Obtuse (adjective)

    Dull; deadened; as, obtuse sound.

Webster Dictionary
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  • Acute (noun)

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

  • Acute (adjective)

    having or experiencing a rapid onset and short but severe course;

    "acute appendicitis"

    "the acute phase of the illness"

    "acute patients"

  • Acute (adjective)

    extremely sharp or intense;

    "acute pain"

    "felt acute annoyance"

    "intense itching and burning"

  • Acute (adjective)

    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"

  • Acute (adjective)

    of an angle; less than 90 degrees

  • Acute (adjective)

    ending in a sharp point

  • Acute (adjective)

    of critical importance and consequence;

    "an acute (or critical) lack of research funds"

  • Obtuse (adjective)

    of an angle; between 90 and 180 degrees

  • Obtuse (adjective)

    of a leaf shape; rounded at the apex

  • Obtuse (adjective)

    lacking in insight or discernment;

    "too obtuse to grasp the implications of his behavior"

    "a purblind oligarchy that flatly refused to see that history was condemning it to the dustbin"

  • Obtuse (adjective)

    slow to learn or understand; lacking intellectual acuity;

    "so dense he never understands anything I say to him"

    "never met anyone quite so dim"

    "although dull at classical learning, at mathematics he was uncommonly quick"

    "dumb officials make some really dumb decisions"

    "he was either normally stupid or being deliberately obtuse"

    "worked with the slow students"

Princeton's WordNet

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