妹はせっかちだからよく忘れ物をする。
My sister is always in such a hurry that she often leaves things behind.
私に返事をするのに彼女はややせっかちであった。
She was a bit hasty in answering me.
せっかちな運転者が赤信号を無視して交差点を通りぬけた。
An impatient driver forced his way through the crossing against the red light.
