| tasteless(adjective, dull, weak, flat, plain) |
| verbose(adjective, dull, tedious, rambling, tiresome) |
| wishy-washy(adjective, dull, tedious, feeling, weak) |
| workaday(adjective, dull, feeling, simple, flat) |
| zero(adjective, dull, flat, tedious, lifeless) |
| colourless(adjective, feeling, boredom, british) |
| bromidic(adjective, dreary, dull, tedious, colorless) |
| disheartening(adjective, dull, gloomy, miserable) |
| dispiriting(adjective, dull, gloomy, miserable, tedious) |
| irritating(adjective, dull, tedious, exasperating, feeling) |
| long-drawn-out(adjective, dull, tedious, dreary, endless) |
| numbing(adjective, dreary, drab, colorless, arid) |
| sluggish(adjective, dull, quiet, simple, flat) |
| unamusing(adjective, characteristic, fun, amusement) |
| unending(adjective, tedious, rambling) |
| unoriginal(adjective, feeling, boredom) |
| unremarkable(adjective, feeling, boredom) |
| usual(adjective, flat, ordinary, dry, uninteresting) |
| well-worn(adjective, dreary, dull, feeling, bad) |
| wordy(adjective, tedious, rambling, repetitive) |