bad
ineligible
irrelevant
unfit
aberrant
abnormal
abominable
atrocious
chintzy
criminal
delinquent
deviant
disgraceful
evil
exceptionable
functionless
futile
hardly the thing
ignominious
ill-adapted
ill-advised
ill-assorted
ill-chosen
ill-considered
ill-fitted
ill-matched
ill-seasoned
ill-sorted
ill-suited
ill-timed
illegal
impolitic
impossible
improper
in bad taste
in disrepair
inadmissible
inadvisable
inapplicable
inapposite
inappropriate
inapt
inauspicious
incongruous
inconvenient
incorrect
indecent
indecorous
indefensible
indelicate
inelegant
inept
inexpedient
advantageous
distasteful
impracticable
impractical
inaccurate
inadequate
ineffective
injurious
objectionable
superfluous
unacceptable
unbecoming
uncongenial
unfavorable
unfitted
unsatisfactory
unwise
disputable
immutable
indisputable
inscrutable
irrefutable
mutable
suitable