All clear as mud synonyms

adj clear as mud

• doubtful — of uncertain outcome or result.
• ambiguous — If you describe something as ambiguous, you mean that it is unclear or confusing because it can be understood in more than one way.
• muddled — to mix up in a confused or bungling manner; jumble.
• unclear — free from darkness, obscurity, or cloudiness; light: a clear day.
• puzzling — confusing or baffling: a puzzling answer.
• dubious — doubtful; marked by or occasioning doubt: a dubious reply.
• vague — not clearly or explicitly stated or expressed: vague promises.
• ambivalent — If you say that someone is ambivalent about something, they seem to be uncertain whether they really want it, or whether they really approve of it.
• unimaginable — capable of being imagined or conceived.
• impenetrable — not penetrable; that cannot be penetrated, pierced, entered, etc.
• opaque — not transparent or translucent; impenetrable to light; not allowing light to pass through.
• unfathomable — not able to be fathomed, or completely understood; incomprehensible: heroism in the face of unfathomable conflict.
• baffling — impossible to understand; perplexing; bewildering; puzzling
• mystifying — to perplex (a person) by playing upon the person's credulity; bewilder purposely.
• inconceivable — not conceivable; unimaginable; unthinkable.
• arcane — Something that is arcane is secret or mysterious.
• complicated — If you say that something is complicated, you mean it has so many parts or aspects that it is difficult to understand or deal with.
• confusing — Something that is confusing makes it difficult for people to know exactly what is happening or what to do.
• indecipherable — not decipherable; illegible.
• occult — of or relating to magic, astrology, or any system claiming use or knowledge of secret or supernatural powers or agencies.
• involved — very intricate or complex: an involved reply.
• hidden — concealed; obscure; covert: hidden meaning; hidden hostility.
• concealed — to hide; withdraw or remove from observation; cover or keep from sight: He concealed the gun under his coat.
• dim — DIM statement
• borderline — The borderline between two different or opposite things is the division between them.
• disreputable — not reputable; having a bad reputation: a disreputable barroom.
• fishy — like a fish in shape, smell, taste, or the like.
• fuzzy — of the nature of or resembling fuzz: a soft, fuzzy material.
• hazy — characterized by the presence of haze; misty: hazy weather.
• indefinite — not definite; without fixed or specified limit; unlimited: an indefinite number.
• indeterminate — not determinate; not precisely fixed in extent; indefinite; uncertain.
• indistinct — not distinct; not clearly marked or defined: indistinct markings.
• misleading — deceptive; tending to mislead.
• oblique — neither perpendicular nor parallel to a given line or surface; slanting; sloping.
• obscure — (of meaning) not clear or plain; ambiguous, vague, or uncertain: an obscure sentence in the contract.
• open — not closed or barred at the time, as a doorway by a door, a window by a sash, or a gateway by a gate: to leave the windows open at night.
• problematic — of the nature of a problem; doubtful; uncertain; questionable.
• questionable — of doubtful propriety, honesty, morality, respectability, etc.: questionable activities; in questionable taste.
• suspect — to believe to be guilty, false, counterfeit, undesirable, defective, bad, etc., with little or no proof: to suspect a person of murder.
• suspicious — tending to cause or excite suspicion; questionable: suspicious behavior.
• tenebrous — dark; gloomy; obscure.
• undecided — not decided or determined.
• unintelligible — not intelligible; not capable of being understood.
• clouded — of or relating to cloud computing: cloud software; cloud servers.
• amphibology — ambiguity of expression, esp when due to a grammatical construction, as in save rags and waste paper
• muzzy — confused; muddled.
• cryptic — A cryptic remark or message contains a hidden meaning or is difficult to understand.
• inscrutable — incapable of being investigated, analyzed, or scrutinized; impenetrable.
• mysterious — full of, characterized by, or involving mystery: a mysterious occurrence.
• perplexing — to cause to be puzzled or bewildered over what is not understood or certain; confuse mentally: Her strange response perplexed me.