Outdated
Synonyms: Old-fashioned, outmoded, unfashionable, dated, outworn, former, old-time, behind the times, past, archaic, obsolete, antiquated, defunct, prehistoric, old-fogeyish, backward-looking, anachronistic, feudal, moth-eaten, passé, vieux jeu, square, out of the ark, clunky, antwacky, rinky-dink, square-toed, out of date, out of fashion, out of style, out, old, musty, old-world, behindhand, bygone, obsolescent, ancient, superannuated, medieval, antediluvian, old-fangled, quaint, crusted, fusty, olde worlde, démodé, old hat, not with it, creaky, mouldy, horse-and-buggy, and mossy.
Example Sentences
The computer uses an outdated operating system.
Her wardrobe is full of outdated clothes.
Outdated rules need revisions to stay relevant.
The map was outdated and hard to use.
Outdated ideas often hinder progress and innovation.