What does なんとなく mean?
なんとなく is a Japanese adverb meaning “for some reason” or “vaguely” in English. It is written as なんとなく in hiragana, and nantonaku in romaji. This word is part of JLPT N3 vocabulary.
Example sentences
なんとなく彼の気持ちが分かる。
I sort of understand how he feels.
なんとなく外に出たくなった。
For some reason, I felt like going out.