Wissen und Verständnis - Mangel an Verständnis

to try one's best in order to solve a problem or to understand it

to confuse someone by using difficult or technical words while describing something to them

used to describe a situation in which someone remains uninformed or unaware, typically after an event or the receipt of information

to fail to correctly understand or interpret what someone said

to be unable to comprehend what is happening around one

a state in which one does not understand the current situation due to being completely detached from reality

Traumland

used when one is completely unable to guess or understand something

used as a response to mean that one does not have any answer to a particular question

Keine Ahnung.

in a state or place that is unknown or unseen, particularly referring to where people go after they die

used to refer to something that is complicated or difficult beyond one's understanding or capability

a subject that is very challenging or boring to one

tote Zone

used for saying that one is unable to understand the meaning of something particular