Why is my kitchen sink not draining even though it is not clogged?

There could be a few reasons why your kitchen sink is not draining even though it is not clogged. One possibility is that there is a problem with the Plumbing system, such as a blockage further down the pipe. Another reason could be a malfunction in the sink's drainage mechanism, such as a faulty stopper or a problem with the garbage disposal. It may be helpful to consult a professional plumber to diagnose and fix the issue.