Speech is often unclear and ambiguous.
The reasons for this remained unclear.
Just what the soldier was doing in Bireij is unclear.
His itinerary is still unclear.
It is unclear how much support they have.
It remains unclear whether his death was murder or suicide.
Experts remain unclear as to why the danger appears to have been steadily increasing.
I'm still unclear about what I'm supposed to do.
He is still unclear about his own future.
His instructions were unclear.