Inexplicable

прилагательное необъяснимый; неизъяснимый, непонятный, непостижимый Синоним(ы): unaccountable, unintelligible

Большой англо-русский словарь

Inexplicable

adjective Etymology: Middle English, from Latin inexplicabilis, from in- + explicabilis explicable incapable of being explained, interpreted, or accounted for Example: an inexplicable disappearanceinexplicability nouninexplicableness nouninexplicably adverb

Merriam-Webster's Collegiate Dictionary