| cornball(adjective, stupid, ordinary, commonplace, puny) |
| cornfed(adjective, stupid, ordinary, commonplace, puny) |
| corny(adjective, stupid, ordinary, commonplace, bland) |
| desolate |
| dingy |
| drab(adjective, dull, colorless) |
| draggy(adjective, dull, simple, boring, tedious) |
| dreary(adjective, dull, simple, boring, tedious) |
| droning(adjective, dull, flat, boring, tedious) |
| dry(adjective, dull, boring, dreary, gray) |
| dull(adjective, weak, plain, mild, ordinary) |
| dumb(adjective, stupid, ordinary, commonplace, bland) |
| everyday(adjective, stupid, ordinary, commonplace, bland) |
| flat as pancake(expression, adjective, idiom, dull, boring) |
| flavorless(adjective, dull, weak, plain, mild) |
| gloomy |
| grungy |
| hackneyed(adjective, dull, stupid, ordinary, boring) |
| ho-hum(adjective, dull, boring, tedious, dreary) |
| hokey(adjective, stupid, ordinary, commonplace, bland) |