about-face on (something)(redirected from about-faces on something)
about-face on (something)
1. verb To completely reverse one's opinion, position, or course of action regarding some issue, especially very suddenly. The senator seems to have about-faced on the tax proposal, suddenly throwing his support behind the measure. Once she saw how much money the company stood to lose, the CEO about-faced on her decision.
2. noun A complete and typically sudden reversal of opinion or action. The senator's about-face on the tax proposal has taken many by surprise. Once she saw how much money the company stood to lose, the CEO did an about-face on her decision.
See also: on
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.