COULDN'T CARE LESS


Meaning of COULDN'T CARE LESS in English

( informal ) used to say, often rudely, that you do not think that sb/sth is important or worth worrying about :

Quite honestly, I couldn't care less what they do.

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