The definition of antiquated is something that is out of date, old or no longer useful.
(Biology) Vestigial or rudimentary, especially in comparison with related or ancestral species, as the tailbone of an ape. Used of an organ or other part of an organism.
See old hat.
(Archaic) Not youthful; rather old
Retired, esp. with a pension, because of old age or infirmity
Relating to, being, or characteristic of words and language that were once in regular use but are now relatively rare and suggestive of an earlier style or period.
Gone by; past:
Smelling stale or stuffy; musty; moldy
Of, like, or characteristic of past times
Representative of or dating from a particular period of the past
Find another word for out-of-date. In this page you can discover 22 synonyms, antonyms, idiomatic expressions, and related words for out-of-date, like: antiquated, obsolete, old-hat, outmoded, old-fashioned, new, passe, unusable, passÃ©, superannuated and antique.