The word "in-conceived" means unable to be imagined or understood. Some synonyms for this word are inconceivable, unimaginable, unfathomable, incomprehensible, and impossible. These words are used to describe something that cannot be understood or grasped by the mind. When something is inconceivable, it is beyond belief or comprehension. It is impossible to imagine or understand something that is unfathomable. The word incomprehensible suggests that something cannot be understood even with great effort or attempts to explain. Similarly, impossible implies that something cannot be achieved or accomplished in any way. These synonyms for "in-conceived" express the idea of something being beyond the limits of our understanding or ability to grasp.