a volte-face

(formal)

a sudden change of a belief or plan to the opposite of what it was before In the early 90's he made a complete political volte-face, moving from the Republican Party to the Democrats.

Common Names:

Name	Pronounced	Usage
Damijan	-	Slovene
Abia	-	Biblical Latin, Biblical Greek
Matan	-	Hebrew
Emmanuel	e-man-WEL (French), i-MAN-yə-wəl (English), i-MAN-yəl (English)	Biblical, French, English
Crofton	KRAWF-tən	English (Rare)
Newman	['nju:mən]