inexpedient (adj.)
- bad
- black
- criminal
- evil
- futile
- ill
- ill-advised
- ill-considered
- ill-judged
- ill-timed
- impolitic
- improper
- imprudent
- inaccurate
- inadvisable
- inappropriate
- inapt
- inauspicious
- incongruous
- inconsiderate
- inconvenient
- indiscreet
- inept
- infelicitous
- inferior
- injudicious
- inopportune
- insensate
- intrusive
- invalid
- irrational
- irrelevant
- late
- malapropos
- malevolent
- mindless
- misguided
- myopic
- peccant
- premature
- reasonless
- reckless
- senseless
- shortsighted
- sinful
- sinister
- thoughtless
- unadvised
- unbefitting
- unconsidered
- undesirable
- undiscerning
- unfavorable
- unfit
- unfitting
- unfortunate
- unhappy
- unhealthy
- unkind
- unlucky
- unpleasant
- unprofitable
- unpropitious
- unready
- unreasonable
- unreflective
- unripe
- unseasonable
- unseeing
- unseemly
- unskillful
- unsound
- unsuitable
- unthinking
- unthoughtful
- untimely
- untoward
- unwise
- vicious
- wicked
- witless
- wrong
