것도 몰라

don't even know

→ 것

phrase Rare #24,979

don't even know Used after a noun or a clause to emphasize that someone does not know even that thing or fact. 몰라 is casual; the ending can change with tense or politeness.

KO: 나는 그 사람이 온 것도 몰라.

EN: I don't even know that person came.

그딴 것도 몰라

You don't even know that?

— I Saw the Devil (2010)