Synonyms of yesterday's

1 Syllable
out, past, cliché, bent, flat, drab, clichéd, dead, dull, passé
2 Syllables
fusty, trite, tired, corny, dusty, worn-out, banal, common, shopworn, well-worn, mawkish, zestless, hackneyed
3 Syllables
insipid, moth-eaten, timeworn, threadbare, effete, cliché-ridden
4 Syllables
commonplace, antiquated, stereotyped, repetitious
5 Syllables
platitudinous, unoriginal