| lubberly(awkward, inept, bulky, ungainly) |
| lumbering(awkward, inept, bulky, ungainly) |
| lumpish(awkward, inept, bulky, ungainly) |
| naive(adjective, weak, inadequate, unfit, unqualified) |
| neutralized(inferior, inadequate, limited, feeble, useless) |
| no can do(expression, adjective, idiom, skill, talent) |
| no good(expression, adjective, skill, incompetent, talent) |
| non-effective(adjective, useless, unfit) |
| non-serviceable(adjective, useless, unfit) |
| noneffective(adjective, useless, unfit) |
| not cut out for(expression, adjective, idiom, skill, inadequate) |
| not paying(expression, idiom, poverty, nonpayment) |
| nugatory(inferior, inadequate, limited, feeble, useless) |
| null(inferior, inadequate, limited, feeble, useless) |
| oafish(awkward, inept, bulky, ungainly) |
| on pins and needles(expression, adjective, idiom, keen, violent) |
| out-of-use(adjective, useless, unfit) |
| out of commission(expression, adjective, idiom, skill, talent) |
| paltry(inferior, inadequate, limited, feeble, useless) |
| paralyzed(adjective, weak, feeble, vulnerable, forlorn) |