acute

sharp or severe in effect; intense.

acute sorrow;

an acute pain.

Antonyms:

dull, dull

extremely great or serious; crucial; critical.

an acute shortage of oil.

(of disease) brief and severe (chronic ).

Synonyms:

violent, extreme, sudden

sharp or penetrating in intellect, insight, or perception.

an acute observer.

Synonyms:

sage, wise, knowing, brilliant, ingenious, bright, smart, clever, sharp-witted, perspicacious, intelligent, perceptive, discerning, astute, keen, sapient, sagacious

Antonyms:

dull, dull

extremely sensitive even to slight details or impressions.

acute eyesight.

Synonyms:

keen

sharp at the end; ending in a point.

Geometry.

1. (of an angle) less than 90°.

2. (of a triangle) containing only acute angles.

Phonetics, Orthography. consisting of, indicated by, or bearing the diacritic ´, placed over vowel symbols in some languages to show that the vowels or the syllables they are in are pronounced in a certain way, as in French that the quality of an e so marked is close; in Hungarian that the vowel is long; in Spanish that the marked syllable bears the word accent; in Ibo that it is pronounced with high tones; or in classical Greek, where the mark originated, that the syllable bears the word accent and is pronounced, according to the ancient grammarians, with raised pitch (grave ): an acute e.

the acute accent;

an acute e.

penetrating in perception or insight

sensitive to details; keen

of extreme importance; crucial

sharp or severe; intense

acute pain

an acute drought

having a sharp end or point

maths

1. (of an angle) less than 90°

2. (of a triangle) having all its interior angles less than 90°

1. arising suddenly and manifesting intense severity

2. of relatively short duration Compare chronic

phonetics

1. (of a vowel or syllable in some languages with a pitch accent, such as ancient Greek) spoken or sung on a higher musical pitch relative to neighbouring syllables or vowels

2. Compare (for senses 8a, 8b): grave.   circumflex.  of or relating to an accent (´) placed over vowels, denoting that the vowel is pronounced with higher musical pitch (as in ancient Greek), with a certain special quality (as in French), etc

(of a hospital, hospital bed, or ward) intended to accommodate short-term patients with acute illnesses