What does いつの間にか mean?
いつの間にか is a Japanese adverb meaning “before one knows it” or “without noticing” in English. It is written as いつの間にか in kanji, いつのまにか in hiragana, and itsunomanika in romaji. This word is part of JLPT N3 vocabulary.
Example sentences
いつの間にか、外は暗くなっていた。
Before I knew it, it had got dark outside.
子供たちはいつの間にか大きくなった。
The children have grown up without my noticing.