Shifty
WordNet
adjective
(1) Changing position or direction
"He drifted into the shifting crowd"
"Their nervous shifting glances"
"Shifty winds"
(2) Characterized by insincerity or deceit; evasive
"A devious character"
"Shifty eyes"
WiktionaryText
Adjective
- Having the appearance of someone dishonest, criminal or unreliable; such as someone with shifty eyes.
- He was a shifty character in a seedy bar and I checked my wallet was still there after talking to him.
- Subject to frequent changes in direction.