unstuck (Adjective) — Free. ex. "a man with a mule got my car unstuck" ex. "the gears locked in second and would not come unstuck"
unstuck (Adjective) — Thrown into a state of disorganization or incoherence. ex. "price programs became unstuck because little grain was available"
unstuck (Verb) — To release, as one thing stuck to another. ex. "Use a trowel to unstick the wood sash"