D defs.my
Entry 2 senses Webster, 1913

Stunning

/stŭn'-ĭng/ · Stun·ning · IPA /stˈʌnɪŋ/
01 a. Overpowering consciousness; overpowering the senses; especially, overpowering the sense of hearing; confounding with noise.
  1. 1.
    Overpowering consciousness; overpowering the senses; especially, overpowering the sense of hearing; confounding with noise.
  2. 2.
    Striking or overpowering with astonishment, especially on account of excellence; as, stunning poetry.[Slang]