acute

Less than right

Acute means sharp or intense.

An acute angle is less than 90 degrees—sharper than a right angle.

Acute pain is severe; acute hearing is highly sensitive.

An acute illness comes on suddenly and intensely but briefly, unlike a chronic one that persists: acute bronchitis.

Acute awareness or acute observations are penetratingly sharp.

The accent mark (´) is called an acute accent.

perception

keen

Sharp or enthusiastic

discerning · insightful · observant · sharp-witted · penetrating · incisive · quick · alert · aware · sensitive

pain

sharp

Fine-edged, or astute

throbbing · intense · severe · localized · sudden · excruciating · lancinating · cramping · stinging · burning

botany

acuminate

Ending in sharp point

leaf · tip · pointed · tapering · lanceolate · mucronate · margin · venation · blade · needle-like

intense

severe

Extremely harsh or strict

concentrated · critical · dire · grave · urgent · pressing · serious · exigent · desperate · dramatic

medical

hospital

Medical treatment facility

life-threatening · stabilize · resuscitation · trauma · ICU · diagnosis · treatment · onset · symptoms · episode

angle

obtuse

Lacking mental sharpness

  • rightMorally proper or entitled
  • degreeUnit of measurement
  • vertexPoint where edges converge

triangle · protractor · geometry · reflex · complementary · supplementary · bisect · measure · radian · inclination

Categories
Opposites
angle geometry

acuteobtuse

Lacking mental sharpness

right · reflex · straight

medical duration

acutechronic

Persisting over time

long-term · persistent · ongoing · prolonged · lingering

severity/urgency

acutemild

Moderate in intensity

minor · negligible · nonurgent · noncritical · trivial

Phrases
Family

acumen, acutely, acuity, acuteness, acupuncture, acutest, acute angle

Familiarity
Top 20,000
Profile
Known to kids · Used worldwide · Timeless · Abstract · Everyday, not technical · Rated G