This is the 7412th most frequent Japanese word.
何となく
Somehow; vaguely; for some reason.
Here, '何となく' is used to convey a vague sense or feeling without a clear reason.
何となく寂しい気持ちがした。
I felt somewhat lonely.
In this context, '何となく' expresses a lack of conviction or clear reasoning behind the opinion.
その提案には何となく納得できなかった。
I somehow couldn't agree with that proposal.
'何となく' in this sentence suggests an indescribable or intuitive perception.