being unsettled or in doubt or dependent on chance

not leading to a definite ending or result

(of a quantity) having no definite value, as an equation that cannot be solved

not precisely determined or established; not fixed or known in advance

of uncertain or ambiguous nature

the quality of being inconclusive

The quality of not being able to be precisely defined or put into words.

The quality or state of being impossible, or very difficult to describe.