anyone's guess

Grammar usage guide and real-world examples

Interchangeable synonym using a different indefinite pronoun.

Idiomatic expression implying that a matter is still undecided or unresolved.

Suggests a situation where two outcomes are equally likely, like a coin flip.

Slightly more formal, suggesting a topic that is still being debated.

A direct, non-idiomatic adjective describing the state of the situation.

Focuses on the impossibility of knowing the outcome in advance.

Emphasizes the difficulty of perceiving or knowing the truth.

Stronger term implying a complete lack of explanation or clues.

The most basic factual description of the lack of information.

A more literary and dramatic way to describe the lack of clarity.