shift·y 
(shĭftē)
(shĭftē)adj. shift·i·er, shift·i·est
1. Having, displaying, or suggestive of deceitful character; evasive or untrustworthy.
2. Distinguished by frequent changes in direction: shifty winds.
3. Able to accomplish what is needed; resourceful.
shifti·ly adv.
shifti·ness n.