ill-suited (?.)
- bad
- futile
- ill-adapted
- ill-advised
- ill-assorted
- ill-chosen
- ill-considered
- ill-fitted
- ill-matched
- ill-sorted
- ill-timed
- impolitic
- improper
- inadmissible
- inadvisable
- inapplicable
- inapposite
- inappropriate
- inapt
- incongruous
- inept
- inexpedient
- infelicitous
- inopportune
- irrelevant
- mal a propos
- maladjusted
- malapropos
- misjoined
- mismatched
- mismated
- misplaced
- out of character
- out of joint
- out of keeping
- out of line
- out of place
- out of proportion
- out of season
- out of time
- out of tune
- unadapted
- unapt
- unbecoming
- unbefitting
- undesirable
- unfit
- unfitted
- unfitting
- unfortunate
- unhappy
- unmeet
- unprofitable
- unqualified
- unseasonable
- unseemly
- unsuitable
- unsuited
- untimely
- unwise
- wrong
