Unpredictable

predict uncertain rogue deflect pistol wayward unpredictableness vagary headcase loose cannon flukey firecracker rough quicksilver careership unstable unpredictably random encounter animutation weatherlike freak unpredictables volatility tilt whirl choppy changey knuckleball raging anyone's guess swing vote sticky wicket squirrelly hit or miss floating vote hitty missy clinamen freakish prediction right one idiosyncratic reaction temperamental on acid nonlinear random unpredictability capricious unexpectable impredictable weather