about-face

Meaning

verb

1. turn, usually 180 degrees
2. change one's mind and assume the opposite viewpoint

noun

1. act of pivoting 180 degrees, especially in a military formation
2. a major change in attitude or principle or point of view
   “an about-face on foreign policy”

Synonyms for about-face

• about turn
• volte-face
• reversal
• policy change