reverse

The side of a coin or medal that does not bear the principal design.

A relation of direct opposition.

“we thought Sue was older than Bill but just the reverse was true”

Turning in the opposite direction.

(American football) a running play in which a back running in one direction hands the ball to a back running in the opposite direction.

An unfortunate happening that hinders or impedes; something that is thwarting or frustrating.

The gears by which the motion of a machine can be reversed.

Rule against.

Cancel officially.

Change to the contrary.

“The trend was reversed”

Reverse the position, order, relation, or condition of.

Turn inside out or upside down.

Of the transmission gear causing backward movement in a motor vehicle.

“in reverse gear”

Reversed (turned backward) in order or nature or effect.

Directed or moving toward the rear.