out of fashion
US /aʊt əv ˈfæʃən/
UK /aʊt əv ˈfæʃən/

1.
過時, 不流行
no longer popular or in style
:
•
Those bell-bottom jeans are completely out of fashion now.
那些喇叭褲現在完全過時了。
•
His ideas are a bit out of fashion for modern business practices.
他的想法對於現代商業實踐來說有點過時了。