UNFATHOMABLE


Meaning of UNFATHOMABLE in English

/ ʌnˈfæðəməbl; NAmE / adjective ( formal )

1.

too strange or difficult to be understood :

an unfathomable mystery

2.

if sb has an unfathomable expression, it is impossible to know what they are thinking

Oxford Advanced Learner's English Dictionary.      Оксфордский английский словарь для изучающик язык на продвинутом уровне.