a.
1.
Bent, curved, bowed, winding.
2.
Distorted, twisted, wry, awry, askew, deformed, disfigured.
3.
Perverse, contumacious, self-willed, capricious, froward.
4.
Dishonest, unfair, dishonorable, knavish, unscrupulous, deceitful, tricky, insidious, crafty, intriguing, diplomatic, Machiavelian.