Russian-English dictionary »

почему-то meaning in English

RussianEnglish
почему-то adverb

somehow(in one way or another; in some way not yet known or designated)
adverb
[UK: ˈsʌm.haʊ] [US: ˈsʌm.ˌhɑːw]

somewhy(for some reason)
adverb