32 Moby Thesaurus words for "grow old": age, antiquate, become extinct, become obsolete, cheat the undertaker, date, decline, dodder, fade, fail, fossilize, fust, get along, get on, lose currency, molder, obsolesce, outdate, perish, rust, shake, shrivel, sink, superannuate, totter, turn gray, turn white, wane, waste away, wither, wizen, wrinkle