| dull(adjective, quiet, weak, flat, low) |
| blah(adjective, dull, quiet, weak, simple) |
| dry(adjective, dull, flat, boring, lifeless) |
| tedious(adjective, dull, weak, simple, low) |
| apathetic(adjective, dull, quiet, simple, flat) |
| dreary(adjective, dull, simple, unhappy, dark) |
| insipid(adjective, dull, weak, simple, boring) |
| bromidic(adjective, dull, simple, boring, dreary) |
| dull as dishwater(expression, adjective, idiom, dull, simple) |
| emotionless(adjective, indifferent, unconcerned, uncaring, passive) |
| ho hum(expression, adjective, dull, weak, simple) |
| impassive(adjective, dull, simple, heavy, indifferent) |
| inelaborate(adjective, dull, simple, dreary, uninteresting) |
| low-key(adjective, dull, idle, sluggish, lazy) |
| modest(adjective, dull, simple, dreary, uninteresting) |
| monotonous(adjective, dull, quiet, weak, simple) |
| phlegmatic(adjective, dull, simple, slow, heavy) |
| tiresome(adjective, dull, simple, boring, dreary) |
| uninteresting(adjective, dull, weak, simple, boring) |
| weariful(adjective, dull, simple, boring, dreary) |