an about-face

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an about-face

A sudden, complete turn or change of direction. This phrase can describe one's physical movement or a change in concept. She did an about-face and walked back up the steps once she saw that the subway wasn't running. Based on the reactions we got from test audiences, we need to do an about-face with the movie's plot.

an about-face

  (mainly American)
a sudden and complete change of someone's ideas, plans, or actions In an about-face on the morning of his trial, the accused changed his plea to guilty. Both papers did an about-face and published a condemnation of his actions.