without a moment's delay; immediately; promptly
Describes acting right away, seizing an opportunity, or responding instantly without hesitation.
He answered the question without a moment's delay.
店員はすかさずおすすめ商品を紹介した。
The clerk promptly introduced a recommended product.
He shot back a counterargument without a moment's delay.
She answered the question instantly.
He immediately teased his friend about the mistake.