| failure |
| forceless(adjective, inadequate, limited, feeble, useless) |
| fruitless(adjective, inadequate, limited, feeble, useless) |
| futile(adjective, unreasonable, inadequate, limited, feeble) |
| futility |
| hard time(noun, expression, rebuff, veto, denial) |
| idle(adjective, inadequate, limited, feeble, useless) |
| ill success |
| impractical(adjective, unreasonable, useless, absurd, hopeless) |
| in poor condition |
| incompetent(adjective, inadequate, limited, feeble, useless) |
| incongruous(adjective, antagonistic, contrary, incompatible, inconsistent) |
| indecisive(adjective, inadequate, limited, feeble, useless) |
| inefficacious(adjective, wild, unreasonable, inadequate, feeble) |
| inefficient(adjective, inadequate, limited, feeble, useless) |
| inept(adjective, inadequate, limited, feeble, useless) |
| inferior(adjective, inadequate, limited, feeble, useless) |
| innocuous(adjective, inadequate, limited, feeble, useless) |
| inoperative(adjective, down, inadequate, limited, feeble) |
| irreconcilable(adjective, counter, antagonistic, contrary, conflicting) |