| blah(adjective, dull, weak, simple, flat) |
| bromidic(adjective, dull, simple, stupid, ordinary) |
| dull(adjective, weak, plain, mild, stupid) |
| dull as dishwater(expression, adjective, idiom, dull, weak) |
| insipid(adjective, dull, weak, simple, flat) |
| monotonous(adjective, dull, weak, simple, flat) |
| tedious(adjective, dull, weak, simple, flat) |
| tiresome(adjective, dull, simple, flat, stupid) |
| trite(adjective, dull, simple, flat, stupid) |
| uninteresting(adjective, dull, weak, simple, flat) |
| draggy(adjective, dull, weak, simple, dead) |
| dreary(adjective, dull, simple, flat, ordinary) |
| dry(adjective, dull, flat, ordinary, boring) |
| matter-of-fact(adjective, dull, simple, boring, dreary) |
| plain(adjective, dull, weak, simple, flat) |
| weariful(adjective, dull, bad, simple, boring) |
| wearisome(adjective, dull, simple, flat, stupid) |
| acerbic(adjective, ironic, deadpan, understated, laconic) |
| apathetic(adjective, dull, simple, dreary, uninteresting) |
| arcane(adjective, ironic, deadpan, understated, laconic) |