unclear
adj.adj. difficult to see, hear, or understand. You use this when something is confusing or not bright enough to see well.
adj. lacking clarity or distinctness; difficult to perceive or comprehend. Often used to describe ambiguous instructions or poor visibility.
The instructions for the new game are very unclear.
The manager's email was so unclear that half the team started working on the wrong project.
While the general goals of the treaty were agreed upon, the specific timeline for implementation remained unclear, leading to further diplomatic tension.
From Middle English unclere, equivalent to un- + clear. Compare Saterland Frisian uunkloor (“unclear”), West Frisian ûnklear (“inoperative, broken”), Dutch onklaar (“out of order, defective, broken”), German unklar (“unclear”), Danish uklar (“unclear”), Swedish oklar (“unclear”).
Commonly used with the verb 'to be' or 'to remain'.