| insufficient(adjective, close, light, weak, soft) |
| poor(adjective, dull, close, mean, bad) |
| deficient(adjective, close, light, weak, slight) |
| unsatisfactory(adjective, bad, weak, rough, poor) |
| incompetent(adjective, weak, ability, poor, thin) |
| imperfect(adjective, weak, rough, poor, awful) |
| scanty(adjective, light, weak, soft, slight) |
| shy(adjective, close, light, weak, poor) |
| feeble(adjective, dull, strong, light, weak) |
| scant(adjective, light, weak, slight, poor) |
| short(adjective, close, light, weak, slight) |
| weak(adjective, dull, strong, light, soft) |
| bad(adjective, quality, bad, weak, poor) |
| faulty(adjective, bad, weak, rough, poor) |
| ineffective(adjective, dull, light, weak, soft) |
| wanting(adjective, close, light, weak, slight) |
| defective(adjective, bad, weak, rough, poor) |
| skimpy(adjective, close, light, weak, slight) |
| scarce(adjective, weak, slight, poor, thin) |
| impotent(adjective, strong, weak, ability, poor) |