| spoiled |
| stinking |
| stodgy(adjective, dull, flat, stupid, dead) |
| stuffy(adjective, dull, flat, stupid, dead) |
| sugar-coated(adjective, syrupy, delicious, preserved, sugary) |
| sugared(adjective, syrupy, delicious, preserved, sugary) |
| sweetened(adjective, syrupy, delicious, preserved, sugary) |
| tame(adjective, dull, flat, stupid, dead) |
| tedious(adjective, dull, flat, stupid, dry) |
| threadbare(adjective, dull, flat, stupid, dry) |
| tiresome(adjective, dull, flat, stupid, dead) |
| tiring(verb, adjective, dull, flat, stupid) |
| unctuous(adjective, excessive, sentimental, flattering, immoderate) |
| unexciting(adjective, dull, flat, stupid, dead) |
| uninteresting(adjective, dull, flat, stupid, dry) |
| unvaried(adjective, dull, flat, stupid, dead) |
| vapid |
| vile |
| viscous |
| vomity |