なぜか
somehow; for some reason; without knowing why.
JLPT
N3
結構
なぜか
意義
Expresses the feeling of "not knowing the reason, cause". Often used to explain things contrary to the speaker's will or judgment.
さっきなぜか
マイク
が
入
らなかった
。
For some reason the mic wasn't working just now.
私
は
今朝
はなぜか
元気
がないようだ
。
I don't seem to be feeling well this morning for some reason.
