Not have a clue.
Not have a clue.
To "not have a clue" suggests a complete lack of knowledge, understanding, or awareness about something. For instance, if you’re asked about the details of a meeting that you didn’t attend, you might respond by saying that you do not have a clue.
He tried to solve the puzzle but didn't have a clue how to proceed.
Struggling to solve the puzzle without any idea of how to proceed.
When asked about the details of the project, she admitted she did not have a clue.
Admitting not knowing the details of the project.
During the meeting, it became clear he didn't have a clue about the company's financial status.
Being clueless about the company's financial status during the meeting.