| impracticable(adjective, weak, stupid, idle, useless) |
| impractical(adjective, weak, stupid, idle, useless) |
| impuissant(adjective, weak, skill, inadequate, unfit) |
| in bad(expression, adjective, vile, disgraceful, shady) |
| in low esteem(expression, adjective, idiom, vile, disgraceful) |
| in the doghouse(expression, adjective, idiom, vile, disgraceful) |
| inadequate(adjective, bad, poor, offensive, skill) |
| incapable(adjective, weak, skill, incompetent, unfit) |
| incapacitated(adjective, weak, skill, incompetent, unfit) |
| incompetent(noun, adjective, weak, skill, stupid) |
| ineffective(adjective, weak, poor, stupid, idle) |
| ineffectual(adjective, weak, skill, stupid, idle) |
| inefficacious(adjective, weak, skill, inadequate, unfit) |
| inefficient(adjective, weak, skill, inadequate, unfit) |
| inept(adjective, weak, skill, stupid, idle) |
| infamous(adjective, vile, shady, dishonorable, lowly) |
| inferior(adjective, mean, bad, poor, base) |
| inglorious(adjective, vile, shady, dishonorable, lowly) |
| inoperative(adjective, weak, skill, stupid, idle) |
| inutile(adjective, stupid, idle, useless, incompetent) |