reverse

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

rule against

a relation of direct opposition

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

turning in the opposite direction

a running play in which a back running in one direction hands the ball to a back running in the opposite direction

of the transmission gear causing backward movement in a motor vehicle

“in reverse gear”

reversed (turned backward) in order or nature or effect

cancel officially

change to the contrary

“The trend was reversed”

an unfortunate happening that hinders or impedes; something that is thwarting or frustrating

reverse the position, order, relation, or condition of