ill-considered (adj.)
- advanced
- automatic
- bad
- botched
- bungled
- casual
- forward
- futile
- half-baked
- hasty
- ill-advised
- ill-judged
- ill-timed
- impolitic
- improper
- imprudent
- impulsive
- inadvertent
- inadvisable
- inappropriate
- inapt
- inauspicious
- incongruous
- inconsiderate
- inconvenient
- indiscreet
- inept
- inexpedient
- infelicitous
- injudicious
- inopportune
- insensate
- intrusive
- involuntary
- irrational
- irrelevant
- late
- malapropos
- mindless
- misguided
- murdered
- myopic
- negligent
- overhasty
- precipitate
- precocious
- premature
- previous
- reasonless
- reckless
- reflex
- reflexive
- rushed
- senseless
- shortsighted
- spoiled
- spontaneous
- thoughtless
- unadvised
- unbefitting
- unconscious
- unconsidered
- uncrystallized
- undesigned
- undesirable
- undiscerning
- unfavorable
- unfit
- unfitting
- unfortunate
- unhappy
- unintended
- unintentional
- unlucky
- unpremeditated
- unprepared
- unprofitable
- unpropitious
- unready
- unreasonable
- unreflective
- unripe
- unseasonable
- unseeing
- unseemly
- unsound
- unstudied
- unsuitable
- unthinking
- unthoughtful
- untimely
- untoward
- unwilled
- unwise
- witless
- wrong
