| spare(adjective, poor, small, boring, insufficiency) |
| trifling(adjective, poor, small, insignificant, unimportant) |
| ho-hum(adjective, age, youth, teen) |
| hollow(verb, adjective, clear, weak, poor) |
| immature(adjective, fresh, raw, inexperienced, young) |
| innocuous(adjective, good, dull, weak, simple) |
| slender(adjective, poor, small, boring, exiguous) |
| sterile(adjective, weak, ground, vain, immature) |
| vacuous(adjective, person, dull, fool, silly) |
| wishy-washy(adjective, good, dull, excite, informal) |
| childish(adjective, silly, fresh, innocent, inexperienced) |
| colorless(adjective, dull, weak, flat, ordinary) |
| commonplace(adjective, dull, set, flat, silly) |
| frugal(adjective, characteristic, quality, poor, small) |
| heavy(adjective, dull, quiet, flat, stupid) |
| infertile(adjective, poor, small, insignificant, unimportant) |
| mean(adjective, poor, small, boring, exiguous) |
| prosy(adjective, dull, weak, flat, stupid) |
| savorless(expression, adjective, idiom, person, ordinary) |
| scant(adjective, poor, small, insignificant, boring) |