プログレッシブ和英中辞典(第３版)の解説
そくだん【即断】
an immediate decision
- 即断で会費1人5万円となった
It was immediately decided to set the fee at 50,000 yen per person. - 彼は即断出来なかった
He could not 「make an immediate decision [make up his mind on the spot].