mental sharpness

• acuitySharpness of mind or sight
• witClever, inventive humor
• focusConcentrated attention point
• razorBlade for removing hair
• clarityState of being understandable

quick · alert · keen · bright · nimble · clever · lucid · astute · piercing · incisive · cognition · concentration · brilliance · precision · agile · aware · crisp · shrewd

• awarenessalertness, aware, attention, cognizance, conscious
• mental claritymental clarity, lucidity, clear thinking, clear head, clear-headedness
• Mind Idiomssharp mind, open mind, quick wit, bird brain, pea brain
• acuityvisual acuity, sharpness, keenness, acuity, mental acuity
• cognitionthinking, reasoning, thought, cognition, remembering
• reflexesreflex, reflexes, reflex action, reflex response, quick reflexes