flippant (adj.)
- airy
- bantering
- belittling
- bluff
- brash
- brazen
- careless
- casual
- cheeky
- cocky
- contemptuous
- crusty
- cursory
- degage
- derisive
- derisory
- discourteous
- dismissive
- disrespectful
- easygoing
- facetious
- flip
- fooling
- forgetful
- fresh
- frivolous
- gratuitous
- heedless
- hooting
- impertinent
- impudent
- inconsiderate
- indifferent
- insolent
- insouciant
- irreverent
- jeering
- jocular
- lazy
- leering
- light-hearted
- mocking
- nervy
- oblivious
- offhand
- offhanded
- perfunctory
- pert
- quizzical
- ragging
- rallying
- reckless
- regardless
- rude
- sassy
- saucy
- scornful
- shallow
- smart
- sneering
- supercilious
- superficial
- tactless
- taunting
- teasing
- thoughtless
- uncalled-for
- undiplomatic
- unheeding
- unmindful
- unprepared
- unready
- untactful
- unthinking
