Having keen insight and understanding; able to perceive and comprehend things clearly and deeply. Describes someone with sharp mental perception and discernment.
From Latin 'perspicax' meaning 'sharp-sighted,' from 'perspicere' (to see through), combining 'per-' (through) and 'specere' (to look). The word literally means seeing through to the truth of things.
Think 'perspective' + 'spacious' — a perspicacious person has a spacious perspective that can see through problems to solutions. They see through confusion like looking through clear glass.
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