| haywire |
| ill-adapted(adjective, dull, flat, slow, awkward) |
| ill-judged(adjective, silly, foolish, thoughtless, unwise) |
| immoral(adjective, rude, shocking, indecent, unseemly) |
| impracticable(adjective, silly, foolish, fantastic, useless) |
| improperly |
| in bad taste(expression, adjective, idiom) |
| inaccurate(adjective, wrong, false, awkward, irregular) |
| inane(silly, foolish, stupid, fantastic, absurd) |
| inappreciable(adjective, insignificant, unimportant, useless, minor) |
| incidental |
| incoherent(adjective, strange, irregular, improper, antagonistic) |
| inconsequent(insignificant, unimportant, trivial, minor, immaterial) |
| inconsequential(insignificant, unimportant, trivial, minor, irrelevant) |
| ineffective(adjective, inadequate, useless, unfit, unsuitable) |
| injudicious(adjective, foolish, thoughtless, rash, unwise) |
| insolent(rude, impolite, arrogant, impudent, presuming) |
| intolerable(adjective, unacceptable) |
| irregular(adjective, wrong, false, strange, awkward) |
| irritating |