hyperacute

Intensely keen perception

Hyperacute means extremely acute—intensely sharp, severe, or sensitive beyond the ordinary acute level.

In medicine, it describes conditions with very sudden onset or extreme severity: hyperacute rejection of a transplanted organ occurs within minutes.

Hyperacute hearing detects sounds others miss.

The prefix intensifies rather than changes the base meaning.

intensity

severe

Extremely harsh or strict

extremeFurthest from moderate
piercingPenetrating or very sharp
excruciatingCausing extreme suffering

overwhelming · sharp · sudden · rapid · critical · pronounced · exaggerated · amplified · concentrated · potent

perception

sensitive

Easily affected emotionally

keenSharp or enthusiastic
sharpFine-edged, or astute
heightenedIncreased in degree

discriminating · refined · discerning · perceptive · attuned · responsive · vigilant · observant · attentive · aware

medical

rejection

Denial of acceptance

transplantMove tissue between bodies
immunologicalOf bodily defense systems
graftIllicit political gain

organ · antibody · crossmatch · hyperimmune · sensitization · incompatibility · triage · emergency · resuscitation · critical

hearing

ultrasonic

Above audible frequency range

frequencyRate of recurrence
pitchFrequency of sound
thresholdPoint of beginning

sensitivity · detection · audiometry · decibels · hertz · acoustics · timbre · resonance · fidelity · amplitude

Opposites

intensity/severity

hyperacutesubdued

Reduced in intensity

moderate · mild · blunted · muted · attenuated

sharpness/acuity

hyperacutedull

Lacking edge or interest

obtuse · blunt · dulled · hyposensitive · impaired

medical temporality

hyperacutechronic

Persisting over time

subacute · indolent · prolonged · gradual · insidious

Family

acute, acutely, acuteness, acutest, subacute

Familiarity: Top 500,000
Profile: Used worldwide · Timeless · Abstract · Rated G