twitchier

She avoided his design being vagrant, but made it scruffier and grungier, therefore making his movements slightly twitchier and edgier.

她没有将他设计成流浪汉的造型，而是更加衣衫褴褛、肮脏丑陋，因此使得他的动作显得有点儿更加病态急躁。