| jading(adjective, dull, boring, tedious, irritating) |
| laborious(adjective, dull, boring, tedious, dreary) |
| lackluster(adjective, dull, simple, clean, plain) |
| literal |
| lowly(adjective, dull, simple, lower, clean) |
| mind-numbing(adjective, dull, dry, boring, tedious) |
| mortal(adjective, dull, boring, dreary, monotonous) |
| newt |
| nothing(adjective, dull, weak, simple, lower) |
| nowhere(adjective, dull, simple, moderate, plain) |
| nuisance |
| old hat(expression, adjective, dull, stupid, ordinary) |
| platitudinous(adjective, dull, simple, clean, plain) |
| plebeian(adjective, dull, mean, simple, lower) |
| poky(adjective, dull, boring, dreary, monotonous) |
| prosing |
| repetitiousness(noun, routine, dullness, likeness, tedium) |
| repetitiveness(noun, routine, dullness, likeness, tedium) |
| same |
| samely(adjective, dull, boring, tedious, dreary) |