do an about-face
Also, do a flip-flop or one-eighty. Reverse one's opinion or course of action. For example, The board did an about-face on acquiring more land, or We expected Dad to do a flip-flop concerning our vacation plans, or They had relied on Jim to vote for Harry, but he did a one-eighty and cast his vote for the incumbent. The first term, alluding to the army command to turn around, dates from the first half of the 1900s, and the variants from the second half of the 1900s (the last refers to a 180-degree change of direction).
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How to use do an about-face in a sentence
In that photo, Merabet has a big smile that spreads across his whole face and lights up his eyes.
Cassandra, whose hair has already begun to fall out from her court-mandated chemotherapy, could face a similar outcome.
They know they will face either a swift backlash or deafening silence.
They are to face oppression with humble persistence and absolute conviction.
She narrowed her eyes, bit her lip as if to chew over the question, and whisked some stray blond hairs away from her face.Powerful Congressman Writes About ‘Fleshy Breasts’|Asawin Suebsaeng|January 7, 2015|DAILY BEAST
It is most peculiar, and when he plays that way, the most bewitching little expression comes over his face.Music-Study in Germany|Amy Fay
Bernard stood there face to face with Mrs. Vivian, whose eyes seemed to plead with him more than ever.Confidence|Henry James
A Yankee, whose face had been mauled in a pot-house brawl, assured General Jackson that he had received his scars in battle.
With a suffocating gasp, she fell back into the chair on which she sat, and covered her face with her hands.The Pastor's Fire-side Vol. 3 of 4|Jane Porter
Joe looked at her with a smile, his face still solemn and serious for all its youth and the fires of new-lit hope behind his eyes.The Bondboy|George W. (George Washington) Ogden