| unapt(adjective, useless, unfit) |
| unfitting(adjective, wrong, suitable, inadequate, improper) |
| faulty(adjective, bad, useless, unfit) |
| ill-timed(adjective, wrong, suitable, improper, tasteless) |
| inadvisable(adjective, bad) |
| incongruous(adjective, dull, wrong, flat, slow) |
| incorrect(adjective, wrong, suitable, inadequate, useless) |
| invalid(adjective, bad, useless, unfit) |
| malapropos(adjective, dull, wrong, flat, slow) |
| unfitted(adjective, useless, unfit) |
| unseemly(adjective, wrong, suitable, inadequate, improper) |
| baneful(adjective, bad) |
| ill-chosen(unsuitable, unfitting, untimely) |
| ill-matched(adjective, suitable) |
| inadmissible(inadequate, inappropriate, unfit, unacceptable, unbecoming) |
| inapposite(dull, flat, slow, inadequate, improper) |
| inconsonant(wrong, suitable, improper, tasteless, unsuitable) |
| ineffective(adjective, inadequate, useless, inappropriate, unfit) |
| ineligible(adjective, inadequate, useless, inappropriate, unfit) |
| inept(dull, wrong, flat, slow, suitable) |