| soporific(adjective, dull, flat, stupid, ordinary) |
| arid(adjective, dull, flat, stupid, ordinary) |
| blah(adjective, dull, flat, ordinary) |
| colorless(adjective, dull, flat, stupid, ordinary) |
| ho hum(expression, adjective, dull, flat, stupid) |
| ordinary(adjective, dull, flat, usual) |
| abused(adjective, flat, stupid, ordinary) |
| archaic(adjective, flat, stupid, ordinary) |
| big yawn(expression, adjective, flat, stupid, ordinary) |
| dismal(adjective, flat, stupid, ordinary) |
| driveling(adjective, flat, stupid, ordinary) |
| familiar(adjective, flat, stupid, ordinary) |
| hackneyed(adjective, dull, hard, flat, stupid) |
| heavy(adjective, flat, stupid, ordinary) |
| hoary(adjective, flat, stupid, ordinary) |
| lifeless(adjective, dull, flat, stupid) |
| longwinded(adjective, flat, stupid, ordinary) |
| oft-repeated(adjective, flat, stupid, ordinary) |
| out-of-date(adjective, dull, hard, flat, stupid) |
| plain(adjective, flat, stupid, ordinary) |