TO SAY NOTHING OF STH


Meaning of TO SAY NOTHING OF STH in English

used to introduce a further fact or thing in addition to those already mentioned

SYN not to mention :

It was too expensive, to say nothing of the time it wasted.

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