impolitic
inadvisable
bad
black
criminal
disadvantageous
evil
futile
ill
ill-advised
ill-considered
ill-contrived
ill-devised
ill-gauged
ill-judged
ill-seasoned
ill-suited
ill-timed
improper
imprudent
inaccurate
inappropriate
inapt
inauspicious
incongruous
inconsiderate
inconvenient
indiscreet
inept
infelicitous
inferior
injudicious
inopportune
insensate
intempestive
intrusive
invalid
irrational
irrelevant
late
mal a propos
malapropos
malevolent
mindless
misadvised
discriminatory
dishonourable
indefensible
inequitable
injurious
invidious
regrettable
uncalled
unchristian
unconstitutional
undesirable
unethical
unmoral
unprovoked
unseasonable
unwarrantable
unwise
unworkable