An improved hitch adapter allows an individual to attach a vehicle with a hook to a trailer with a ball coupler. The improved hitch adapter comprises an adapter ring mechanically coupled to a front plate. The front plate is mechanically coupled to a first parallel surface. The first parallel surface further comprises an adapter ball inset. The first parallel surface is mechanically coupled to a left plate and a right plate. The adapter ball inset is mechanically coupled to a height-adjustable ball. The right plate and the left plate are mechanically coupled to a size variable clamp. This enables a user to mechanically couple the hook to ball coupler regardless of size of the ball coupler enabling full articulation in a vertical direction and a rotational direction.