| old-time(adjective, dull, new, last, original) |
| out(adjective, informal, dead, possible, unacceptable) |
| out of date(expression, adjective, idiom) |
| stale(adjective, dull, warm, last, original) |
| musty(adjective, stale, unfashionable, obsolete, antiquated) |
| primitive(adjective, last, original, old, outdated) |
| stuffy(adjective, warm, boring, stale, conventional) |
| behind the times(expression, adjective, idiom, cold, current) |
| belated(adjective, dead, past, lost, previous) |
| conventional(adjective, warm, tense, dreary, stale) |
| disused(adjective, outworn) |
| dowdy(adjective, dull, new, unfashionable, antiquated) |
| neglected(adjective, unfashionable, antiquated, archaic, outworn) |
| old-hat(adjective, unfashionable, outdated, obsolete, antiquated) |
| dead(adjective, informal, out, past, lost) |
| conservative(noun, adjective, dull, conventional, traditional) |
| oldfangled(adjective, last, original, dead, past) |
| out-dated |
| past(noun, adjective, last, original, primitive) |
| unprogressive(adjective, conventional, traditional, conservative, conformist) |