| jejune(adjective, dull, weak, dead, tedious) |
| banal(adjective, dull, weak, dead, tedious) |
| bland(adjective, dull, weak, dead, tedious) |
| blind(adjective, dull, weak, dead, tedious) |
| colorless(adjective, dull, weak, dead, tedious) |
| dim(adjective, dull, weak, dead, tedious) |
| drab(adjective, dull, weak, dead, tedious) |
| draggy(adjective, dull, weak, dead, tedious) |
| flat(adjective, dull, lackluster) |
| flavorless(adjective, dull, weak, dead, tedious) |
| garden variety(expression, adjective, plain, common, ordinary) |
| inane(adjective, dull, weak, dead, tedious) |
| innocuous(adjective, dull, weak, dead, tedious) |
| lead balloon(expression, adjective, dull, weak, dead) |
| lifeless(adjective, dull, weak, dead, tedious) |
| matte(adjective, dull, weak, dead, tedious) |
| muted(adjective, dull, weak, dead, tedious) |
| pointless(adjective, dull, weak, dead, tedious) |
| prosaic(adjective, dull, weak, common, ordinary) |
| prosy(adjective, dull, weak, dead, tedious) |