/ ˌstepfəd ˈwaɪf; NAmE -fərd/ noun
a woman who does not behave or think in an independent way, always following the accepted rules of society and obeying her husband without thinking :
She's gradually turning into a Stepford wife.
ORIGIN: From the title of the book and film / movie The Stepford Wives , in which a group of women who behave in this way are in fact robots.