inadvertent (adj.)
- arbitrary
- automatic
- capricious
- careless
- casual
- derelict
- distracted
- distrait
- feckless
- heedless
- ill-advised
- ill-considered
- inattentive
- inconsiderate
- incurious
- indifferent
- involuntary
- laissez-faire
- lax
- loose
- neglectful
- negligent
- nonrestrictive
- off-guard
- permissive
- reasonless
- reflex
- reflexive
- regardless
- relaxed
- remiss
- slack
- slighting
- spontaneous
- thoughtless
- unadvised
- uncaring
- unconscious
- unconsidered
- undesigned
- unguarded
- unheeding
- unintended
- unintentional
- unmindful
- unobservant
- unplanned
- unpremeditated
- unreasoning
- unreflective
- unstudied
- unthinking
- unthought
- unthoughtful
- unwary
- unwatchful
- unwilled
