いつの間まにか
Meanings
Adverb
1. before one knows; before one becomes aware of; unnoticed; unawares
While thinking about such things, I had opened both my hands before I knew it.
Kanji used
interval
Pitch accent
い
つのまに
か
い
つのま
にか
Top 1900
Composed of
when; at what point
Examples (16 in total)
The background had changed before I knew it.
No matter how many I squash, they keep breeding before I know it.
It seems that, without my realizing it, I had been shedding tears.