Adjective

• S: (adj) ill-defined, unclear (poorly stated or described) "he confuses the reader with ill-defined terms and concepts"
• S: (adj) unclear (not clear to the mind) "the law itself was unclear on that point"; "the reason for their actions is unclear to this day"
• S: (adj) indecipherable, unclear, undecipherable, unreadable (not easily deciphered) "indecipherable handwriting"