not steady or firm; unstable; shaky

an unsteady hand.

fluctuating or wavering

an unsteady flame; unsteady prices.

irregular or uneven

an unsteady development.

to make unsteady.

adjective

precarious , rickety , shaky , tottering , tottery , wobbly , infirm , unstable , unsure , weak , alterable , fluid , inconstant , mutable , uncertain , unsettled , variable , variant , changeable , erratic , fantastic , fantastical , fickle , freakish , inconsistent , mercurial , temperamental , ticklish , unpredictable , volatile , whimsical , patchy , spotty , capricious , dizzy , fluctuating , giddy , groggy , quivery , rocky , shifting , teetering , tippy , unreliable , unsound , vacillating , wabbly , wavering , wayward , wiggly