| dull(adjective, hard, stupid, dry, boring) |
| common(adjective, dull, hard, flat, ordinary) |
| stale(adjective, dull, hard, flat, stupid) |
| banal(adjective, dull, hard, tired) |
| commonplace(adjective, dull, hard, flat, stupid) |
| dead(adjective, dull, hard, flat, stupid) |
| dry(adjective, dull, hard, flat, stupid) |
| flat(adjective, dull, hard, stupid, ordinary) |
| insipid(adjective, dull, hard, flat, stupid) |
| drab(adjective, dull, hard, stupid, boring) |
| hackneyed(adjective, dull, hard, flat, stupid) |
| moth-eaten(adjective, dull, hard, flat, stupid) |
| out-of-date(adjective, dull, hard, flat, stupid) |
| platitudinous(adjective, dull, hard, flat, stupid) |
| stereotyped(adjective, dull, hard, flat, stupid) |
| threadbare(adjective, dull, hard, flat, stupid) |
| tired(adjective, dull, hard, flat, stupid) |
| trite(adjective, dull, hard, flat, stupid) |
| well-worn(adjective, dull, hard, flat, stupid) |
| worn-out(adjective, dull, hard, flat, stupid) |