unreasoning (adj.)
- arbitrary
- blank
- brainless
- calm
- capricious
- careless
- emotive
- empty
- empty-headed
- fatuous
- foolish
- hammy
- headless
- heedless
- histrionic
- hysteric
- ignorant
- inadvertent
- inane
- inconsiderate
- inept
- insensate
- irrational
- melodramatic
- mindless
- nonrational
- oblivious
- overemotional
- passive
- reasonless
- relaxed
- sensational
- sensationalistic
- senseless
- theatrical
- thoughtless
- tranquil
- unguarded
- unintelligent
- unoccupied
- untalented
- unthinking
- unthoughtful
- unwise
- vacant
- vacuous
- witless
