temper; irritability; fit of anger; tantrum (esp. of children); temper tantrum
子供が癇癪を起こした。
The child threw a tantrum.
子供の癇癪に冷静に対処する。
Deal calmly with children's tantrums.
言葉を覚え、彼の癇癪は徐々に収まった。
As he learned words, his tantrums gradually subsided.