瞬しゅん速そく

noun, noun which may take the genitive case particle 'no'

blindingly quick speed; in a flash; in the blink of an eye

Slang term emphasizing extreme speed, often used in gaming, sports, or online contexts.

• 彼かれの反はん応のうは瞬しゅん速そくだった。

  His reaction was blindingly quick.

• 瞬しゅん速そくで敵てきを倒たおした。

  I defeated the enemy in a flash.