unclear

Short definition from Wiktionary

Adjective

1. 1
   Ambiguous; liable to more than one interpretation.
2. 2
   Not clearly or explicitly defined.
3. 3
   Not easy to see or read; indecipherable or unreadable.
4. 4
   Not having a clear idea; uncertain.

Verb

1. 1
   To undo the process of clearing.