Stunning/ˈstʌnɪŋ/ Definition 1 of 3Pro Tip 1/3Positive Impact Use 'stunning' to express strong positive reactions, especially towards appearance or performance. Your painting is absolutely stunning! Pro Tip 2/3Emphasis on Beauty 'Stunning' suggests something is so beautiful it almost shocks or overwhelms the senses. The view from the mountain was simply stunning. Pro Tip 3/3Personal Reaction Use when you want to convey your personal, strong admiration for someone or something. Her voice is stunning; I could listen for hours.