沸わきが早はやい

expression, i-adjective

quick to warm up; heats up fast

Often used for kettles, pots, or water that reach boiling point quickly. Can also describe a person who gets excited or angry easily.

• このやかんは沸わきが早はやいので、すぐにお湯ゆが沸わきます。

  This kettle heats up quickly, so the water boils right away.

• 彼かれは沸わきが早はやいから、ちょっとしたこと