tactless (adj.)
- abrupt
- airy
- awkward
- blanket
- bluff
- blunt
- boorish
- brash
- brusque
- bungling
- caddish
- careless
- casual
- clumsy
- coarse
- crude
- cursory
- degage
- discourteous
- disrespectful
- easygoing
- flippant
- forgetful
- gauche
- general
- gruff
- heedless
- ill-bred
- impertinent
- impolite
- impolitic
- imprudent
- inconsiderate
- indelicate
- indifferent
- indiscreet
- indiscriminate
- inept
- injudicious
- insensitive
- insouciant
- lazy
- loutish
- maladroit
- nasty
- nonjudgmental
- oblivious
- offensive
- offhand
- perfunctory
- promiscuous
- reckless
- regardless
- rough
- rude
- thoughtless
- uncivil
- uncivilized
- uncouth
- uncritical
- undemanding
- undiplomatic
- undiscriminating
- unexacting
- unfastidious
- unfeminine
- ungentle
- ungentlemanly
- unheeding
- unladylike
- unmindful
- unrefined
- unselective
- unsophisticated
- unsubtle
- untactful
- unthinking
- unwise
- vulgar
- wholesale
