即そく席せきに

adverb

impromptu; on the spot; off the cuff; ad lib

Used for doing something without preparation, such as giving a speech, performing, or making something quickly.

• 彼かれは即そく席せきにスピーチをした。

  He gave an impromptu speech.

• 即そく席せきに料りょう理りを作つくってくれた。

  She cooked a meal on the spot for me.