Refers to a sudden outburst of anger or irritability, often used for children's tantrums but also for adults losing their temper.
子供がかんしゃくを起こして泣き叫んだ。
The child threw a tantrum and screamed.
彼はちょっとしたことでかんしゃくを起こす。
He flies into a rage over little things.
癇癪 refers to a fit of temper or tantrum, often short and childish, while ブチ切れ emphasizes a sudden explosive snap in adult slang.
hot-tempered person; person with a short fuse
Standard kanji spelling.
Kana spelling is common in everyday writing, especially when the kanji are considered difficult.
The kanji 癇 and 癪 both relate to illness or spasms, reflecting the historical view of tantrums as a kind of fit. The exact derivation is uncertain, but the word has been used since the Edo period.