Shifty
Part of speech: adjective
Definition: Having the appearance of someone dishonest, criminal or unreliable; such as someone with shifty eyes. Subject to frequent changes in direction.
Unsteady
Part of speech: verb
Definition: To render unsteady, removing balance.
Part of speech: adjective
Definition: Not held firmly in position.Noted for lack of regularity or uniformity.Inconstant in purpose, or volatile in behaviour.