| shallow |
| silly(adjective, tired, commonplace, stale) |
| slight(dull, mean, small, unimportant, trivial) |
| square(adjective, dull, simple, plain, stupid) |
| stupid(adjective, dull, flat, ordinary, dry) |
| superficial(mean, slight, small, unimportant, trivial) |
| tame(adjective, dull, simple, flat, plain) |
| tasteless(adjective, hard, old, sour, musty) |
| unimportant(adjective, mean, slight, small, unimportant) |
| uninspiring(adjective, dull, simple, flat, plain) |
| unvaried(adjective, dull, simple, flat, stupid) |
| used up(expression, wornout, isochronal, summative) |
| wearisome(adjective, dull, simple, flat, stupid) |
| well-trodden |
| worthless(adjective, slight, small, unimportant) |
| zero(adjective, dull, simple, plain, stupid) |
| abused(adjective, flat, stupid, ordinary, dry) |
| accredited |
| accustomed(adjective, impulse) |
| acknowledged |