noun which may take the genitive case particle 'no', noun
very easy; a piece of cake; child's play
Idiomatic expression meaning something is extremely easy, often used in casual conversation. Literally 'before breakfast', implying a task so simple it can be done before the morning meal.
こんな問題、朝飯前だよ。
This kind of problem is a piece of cake.
彼にとっては朝飯前の
For him, it was a cinch of a job.
noun
before breakfast
Original literal meaning, now rare. Refers to the time before eating breakfast. Mostly encountered in historical or explanatory contexts.
「朝飯前」はもともと、朝食の前の時間を指す言葉だった。
Originally, 'asameshimae' referred to the time before breakfast.