unclear
US /ʌnˈklɪr/
UK /ʌnˈklɪr/
1.
not easy to understand or be sure about
:
•
The instructions were unclear, so I didn't know how to assemble it.
•
His motives for doing that remain unclear.
2.
not transparent or easy to see through
:
•
The water in the pond was unclear after the heavy rain.
•
The old window panes were so unclear that it was hard to see outside.