| noun | a change from one state to the opposite state “there was a reversal of autonomic function” |
| noun | an unfortunate happening that hinders or impedes; something that is thwarting or frustrating |
| noun | turning in an opposite direction or position “the reversal of the image in the lens” |
| noun | a decision to reverse an earlier decision |
| noun | a judgment by a higher court that the judgment of a lower court was incorrect and should be set aside |
| noun | turning in the opposite direction |
| noun | the act of reversing the order or place of |
| noun | a major change in attitude or principle or point of view “an about-face on foreign policy” |
| reverse | verb | change to the contrary |
| set back | verb | slow down the progress of; hinder |
| turn around | verb | turn abruptly and face the other way, either physically or metaphorically |
| flip-flop | verb | reverse (a direction, attitude, or course of action) |
| reverse | adjective | reversed (turned backward) in order or nature or effect |
| transpose | verb | change the order or arrangement of |
| about-face | verb | change one's mind and assume the opposite viewpoint |