Acuity: sharpness of thought, vision, or hearing. The ability to think accurately and clearly. Penetrating intelligence.
Acuity is insight, perception, sagacity, or astuteness.
Pronunciation: Acuity
We often use this word in the phrase “mental acuity.”
In idiomatic English, we might say that someone with mental acuity has the “mind of a steel trap.”
We tend to think that mental acuity declines with age. This explains why I feel that I have the mind of a dented, rusty steel trap.
My mind needs some WD-40.
