mindless (adj.)
- aimless
- airy
- aloof
- anarchic
- angry
- animal
- animalistic
- apathetic
- asinine
- asleep
- ataractic
- beastly
- bestial
- blase
- blustering
- blusterous
- blustery
- bored
- brainless
- brutal
- brute
- brutish
- careless
- casual
- causeless
- chaotic
- cursory
- degage
- detached
- devil-may-care
- disinterested
- dispassionate
- distant
- dumb
- easygoing
- fatuous
- flippant
- foolish
- forgetful
- frantic
- frenzied
- fruity
- furious
- haphazard
- headless
- heedless
- hellish
- idiotic
- ignorant
- ill-advised
- ill-considered
- ill-judged
- imbecilic
- impassive
- impolitic
- imprudent
- inadvisable
- inattentive
- incognizant
- inconsiderate
- incurious
- indifferent
- indiscreet
- indiscriminate
- inept
- inexpedient
- inexplicable
- injudicious
- insensate
- insensible
- insouciant
- instinctive
- irrational
- lackadaisical
- lazy
- listless
- lunatic
- mad
- maniac
- mental
- misguided
- moronic
- myopic
- napping
- negligent
- nitwitted
- nonchalant
- nonrational
- nuts
- oblivious
- obtuse
- offhand
- perfunctory
- phlegmatic
- promiscuous
- purposeless
- raging
- random
- ravening
- reasonless
- reckless
- regardless
- rip-roaring
- senseless
- shortsighted
- silly
- stochastic
- stolid
- stormy
- stray
- stupid
- subhuman
- tactless
- tempestuous
- thick
- thickheaded
- thoughtless
- troublous
- tumultuous
- turbulent
- unaccommodating
- unaccountable
- unadvised
- unaware
- unconcerned
- unconscious
- unconsidered
- uncooperative
- undiplomatic
- undirected
- undiscerning
- undiscriminating
- unhearing
- unheeding
- unhelpful
- uninquiring
- unintelligent
- uninterested
- uninvolved
- unknowing
- unmindful
- unmotivated
- unobliging
- unperceiving
- unprepared
- unready
- unreasonable
- unreasoning
- unreflective
- unseeing
- unsound
- unsuspecting
- untactful
- untalented
- unthinking
- unthoughtful
- unwise
- unwitting
- uproarious
- wild
- withdrawn
- witless
- zoic
