Synonyms of incomprehensible

1. inexplicable (vs. explicable), incomprehensible, cryptic, cryptical, deep, inscrutable, mysterious, mystifying, paradoxical, self-contradictory, unaccountable, unexplainable, unexplained, incomprehensible#2, uncomprehensible, insoluble: usage: incapable of being explained or accounted for; "inexplicable errors"; "left the house at three in the morning for inexplicable reasons"
2. incomprehensible (vs. comprehensible), uncomprehensible, dark, obscure, enigmatic, enigmatical, puzzling, unfathomable, impenetrable, indecipherable, lost, missed, opaque, unintelligible, inexplicable#1, incomprehensible, unclear, unintelligible: usage: difficult to understand; "the most incomprehensible thing about the universe is that it is comprehensible"- A. Einstein