| dull(adjective, boring, tedious, monotonous) |
| jejune(adjective, flat, stupid, ordinary) |
| archaic(adjective, flat, stupid, ordinary) |
| arid(adjective, flat, stupid, ordinary) |
| big yawn(expression, adjective, flat, stupid, ordinary) |
| blah(adjective, flat, stupid, ordinary) |
| colorless(adjective, flat, ordinary, boring) |
| common(adjective, flat, stupid, ordinary) |
| commonplace(adjective, flat, ordinary, boring) |
| dead(adjective, flat, stupid, ordinary) |
| dismal(adjective, flat, stupid, ordinary) |
| dreary(adjective, flat, stupid, ordinary) |
| driveling(adjective, flat, stupid, ordinary) |
| familiar(adjective, flat, stupid, ordinary) |
| flat(adjective, stupid, ordinary, boring) |
| hackneyed(adjective, flat, stupid, ordinary) |
| heavy(adjective, flat, stupid, ordinary) |
| ho hum(expression, adjective, flat, ordinary) |
| hoary(adjective, flat, stupid, ordinary) |
| humdrum(adjective, flat, ordinary, boring) |