infelicitous
artless
awkward
bad
banal
clumsy
flat
futile
gauche
half-assed
ill-adapted
ill-advised
ill-assorted
ill-chosen
ill-considered
ill-fitted
ill-matched
ill-sorted
ill-suited
ill-timed
impolitic
improper
inadept
inadmissible
inadvisable
inapplicable
inapposite
inappropriate
inattentive
incongruous
inefficient
inept
inexpedient
inexpert
inopportune
insipid
irrelevant
jejune
mal a propos
maladjusted
maladroit
malapropos
mediocre
misjoined
mismatched
mismated
misplaced
out of character
blockish
bookish
different
fashion-model
ill-balanced
inartful
incommodious
lack-lustre
off-balance
old-womanish
out-of-date
shortsighted
sublunary
twenty-two-year-old
unappreciative
undiscerning
unenlightened
unentertaining
unheroic
unready
unskillful