unsteady adj
1: subject to change or variation especially in behavior; "her unsteady walk"; "his hand was unsteady as he poured the wine"; "an unsteady voice" [ant: steady]
2: not having a steady rhythm; "an arrhythmic heartbeat" [syn: arrhythmic, jerking, jerky]
3: not firmly or solidly positioned; "climbing carefully up the unsteady ladder"; "an unfirm stance" [syn: unfirm]