acuteness

1 a harsh or sharp quality judging by the acuteness in his tone when he congratulated me, I think he was actually quite resentful that I won Synonyms acerbity, acidity, acidness, acridity, acridness, acrimoniousness, acrimony, edge, asperity, bite, bitterness, harshness, keenness, poignance, poignancy, pungency, roughness, sharpness, tartnessRelated Words ginger, punch, spice, tang; raucousness, severeness, severity, shrillness, virulence, vitriol; cattiness, maliciousness; pointedness, thorninessNear Antonyms gentleness, kindlinessAntonyms mildness, softness

2 the state or quality of being able to sense slight impressions or differences the acuteness of the bird's eyesight is amazing Synonyms acuity, delicacy, keenness, perceptiveness, perceptivity, sensitiveness, sensitivity, sharpnessRelated Words hyperacuity, hypersensitiveness, hypersensitivity, oversensitiveness, oversensitivity, supersensitivity; accuracy, exactitude, exactness, fineness