shifty

adjective

1. 1

   Subject to frequent changes in direction.

2. 2

   (of a person's eyes) Moving from one object to another, not looking directly and steadily at the person with whom one is speaking.

3. 3

   Having the appearance of being dishonest, criminal or unreliable.

   “He was a shifty character in a seedy bar, and I checked my wallet was still there after talking to him.”

4. 4

   Resourceful; full of, or ready with, shifts or expedients.