Uturned

noun
1.
a U -shaped turn made by a vehicle so as to head in the opposite direction from its original course.
2.
a reversal of policy, tactics, or the like, resembling such a maneuver.
verb (used without object)
3.
to execute a U-turn:
to U-turn into oncoming traffic.
noun
1.
a turn made by a vehicle in the shape of a U, resulting in a reversal of direction
2.
a complete change in direction of political or other policy