Word: stalest

old, past its best, off, dry, hard, musty, rancid, overstored, stuffy, close, fusty, stagnant, flat, turned, spoiled, insipid, tasteless, hackneyed, tired, worn out, overworked, threadbare, warmed-up, banal, trite, clichéd, platitudinous, unoriginal, unimaginative, uninspired, out of date, outdated, outmoded, passé, archaic, obsolete, warmed-over, old hat, corny, unfunny, played out, cold, dusty, moth-eaten