| not cut out for(expression, inadequate, useless, unqualified, unable) |
| not deserving(expression, unfit, worthless, unworthy, undeserving) |
| not equal to(expression, adjective, idiom, weak, inadequate) |
| not fit(expression, unfit, worthless, unworthy, undeserving) |
| not good enough(expression, idiom, unfit, worthless, unworthy) |
| not have it(expression, inadequate, useless, inept, unable) |
| not up to(expression, adjective, idiom, weak, inadequate) |
| not worth(expression, unfit, worthless, unworthy, undeserving) |
| nothing(unfit, worthless, unworthy, undeserving) |
| objectionable(adjective, qualified, inexpedience) |
| offensive(unfit, worthless, unworthy, undeserving) |
| out-of-use(adjective, useless, unfit) |
| out of keeping(expression, adjective, idiom, inadequate, disagreeable) |
| out of place(expression, adjective, idiom, inadequate, inappropriate) |
| out to lunch(expression, inadequate, useless, inept, unable) |
| poor(adjective, weak, inadequate, unfit, unqualified) |
| powerless(adjective, weak, inadequate, unfit, unqualified) |
| raw(inadequate, useless, inept, unable, unskilled) |
| recreant(unfit, worthless, unworthy, undeserving) |
| reprehensible(unfit, worthless, unworthy, undeserving) |