difficult to decipher
of, relating to, or written with this system of symbols
Undecipherable handwriting or secret symbol.
Any symbol used in this system; a hieroglyph.
A writing system of ancient Egypt, Minoans, Maya and other civilizations, using pictorial symbols to represent individual sounds as a rebus
Not clearly or explicitly defined.
Not easy to see or read; indecipherable or unreadable.
Ambiguous; liable to more than one interpretation.
Not having a clear idea; uncertain.
To undo the process of clearing.