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
Eileifr	-	Ancient Scandinavian
Jaslyn	JAZ-lin	English (Rare)
Lennie	LEN-ee	English
Sadaf	-	Arabic
Davina	də-VEEN-ə	English (British)
Hinrich	HIN-rikh	Low German