| in holding pattern(expression, adjective, idiom, dull, idle) |
| inadaptable(adjective, inapplicable) |
| inane |
| incapable(weak, skill, unfit, inept, powerless) |
| incapacitated(adjective, weak, skill, unfit, inept) |
| indecisive(inferior, inadequate, limited, feeble, useless) |
| indolent(dull, sluggish, lazy, motionless, unmoving) |
| inferior(inadequate, limited, feeble, useless, vain) |
| innocent(simple, gentle, inoffensive, innocuous) |
| innocuous(simple, gentle, inferior, inadequate, feeble) |
| innoxious(simple, gentle, innocent, inoffensive, innocuous) |
| inoffensive(simple, gentle, innocent, innocuous) |
| insensate(dull, cold, lifeless, nonliving, inorganic) |
| insentient(adjective, dull, cold, lifeless, inanimate) |
| insignificant |
| irrelative(adjective, inapplicable) |
| irrelevant(adjective, inapplicable) |
| lame(adjective, inferior, inadequate, limited, feeble) |
| lax(adjective, dull, idle, sluggish, lazy) |
| lazy(adjective, dull, idle, sluggish, passive) |