по непонятным причинам – англійський переклад

for no good reason (Alexander Demidov); for inexplicable reasons (Andrey Truhachev); for reasons undefined (Sad Bodhisattva)

for unclear reasons (New York Times Alex_Odeychuk); for whatever reasons (Alex_Odeychuk); for reasons not understood (Daily Mail Alex_Odeychuk)

inexplicably (Notburga); for some unknown reason (lexicographer); for no explicable reason (Anglophile); for no obvious reason (She hates me for no obvious reason. ART Vancouver); for some obscure reason (Дмитрий_Р); confusingly (Alexander Matytsin)

по непонятным причинам: 8 фраз в 5 тематиках