| ill-adapted |
| ill-advised(wrong, false, awkward, unsuitable, unfitting) |
| imprudent(wrong, false, awkward, unsuitable, unfitting) |
| inaccurate(wrong, false, awkward, unsuitable, unfitting) |
| inadvisable(wrong, false, awkward, unsuitable, unfitting) |
| inappurtenant(adjective, insignificant, unimportant, trivial, remote) |
| inapropos(adjective, insignificant, unimportant, trivial, improper) |
| incidental |
| incommensurable(disagreement, irrelation) |
| incompetent |
| inconsequent |
| inconsequential(insignificant, unimportant, trivial, inappropriate, irrelevant) |
| inconsiderable(insignificant, unimportant, trivial, inconsequential, irrelevant) |
| inconsiderate(insignificant, unimportant, trivial, inconsequential, irrelevant) |
| inconsonant(improper, unsuitable, irrelevant, repugnant, unfitting) |
| inessential(insignificant, unimportant, trivial, inconsequential, irrelevant) |
| inharmonious(wrong, false, awkward, inadequate, inappropriate) |
| insignificant(unimportant, trivial, inappropriate, inconsequential, irrelevant) |
| irregular(wrong, false, awkward, unsuitable, unfitting) |
| jejune |