Entry 3 senses Webster, 1913 out-of-date · IPA 01 adj. same as old-fashioned, a., 2. 1. same as old-fashioned, a., 2. See: old-fashioned 2. Unacceptable because it is inferior to current standards, procedures, or technology; outmoded{2}; noncurrent. 3. no longer valid. Syn. antique, demode, old-fashioned, old-hat(predicate), outmoded, out of fashion(predicate), out of style(predicate), passe, passee. — Syn. -- obsolete, outmoded{2}, superannuated. — Syn. -- back(prenominal), outdated.