So last century (5)
I believe the answer is:
dated
(Other definitions for dated that I've seen before include "Unfashionably old" , "not without romantic engagements" , "Rusty" , "square" , "Passe" .)
I believe the answer is:
dated
(Other definitions for dated that I've seen before include "Unfashionably old" , "not without romantic engagements" , "Rusty" , "square" , "Passe" .)