Completely open
The front door was wide open.
Having no laws or law enforcement
It was a wide open frontier town before the railroad came.
Unsettled or unresolved
The fate of the loan sailor is still wide open.
Vulnerable or unprotected
He left himself wide open to criticism.
Without the presence of opponents nearby
He was wide open and scored easily after receiving the pass.
Of the situation at the beginning of trading when there is a large spread between bid and ask prices