What is inconceivable?

"Inconceivable" is an adjective that describes something that is unlikely or impossible to comprehend or imagine. It is often used to refer to something that is beyond belief or understanding, such as an incredible event, an unfathomable idea or a mind-boggling feat. The term is commonly used in literature, film, and everyday language to express something that is beyond rational explanation or belief. For example - the idea of time travel is inconceivable to some people because it conflicts with our understanding of the laws of physics.