a.
1.
Wavering, restless, vacillating, fickle, unsteady, unstable, changeable, not steady.
2.
Unequal, changeable, inequable.
3.
Turbid, roily, roiled, feculent, muddy.
4.
Uninhabited, without inhabitants.
5.
Undetermined, open, unadjusted.
6.
Unpaid, owing, due, outstanding.