Extremely impressive or beautiful to the point of causing shock, amazement, or temporary speechlessness. It describes something that overwhelms the senses or emotions with its impact.
From 'stun' via Old French 'estoner' meaning 'to astonish,' ultimately from Latin 'attonare' (to thunder at). The word literally means 'to strike senseless' and evolved to describe anything that overwhelms through beauty or impact.
When we call something stunning, we're describing a genuine neurological response—the brain's momentary pause when processing something that exceeds our expectations. This 'aesthetic arrest' is a real phenomenon where beauty or impressiveness literally interrupts our normal cognitive processing, creating that breathless moment.
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