FLIPPANT
flippant, light-minded
(adjective) showing inappropriate levity
Source: WordNet® 3.1
Etymology
Adjective
flippant (comparative more flippant, superlative most flippant)
(archaic) glib; speaking with ease and rapidity
(chiefly dialectal) nimble; limber.
Showing disrespect through a casual attitude, levity, and a lack of due seriousness; pert.
Synonyms
• See also cheeky
Antonyms
• serious
Source: Wiktionary
Flip"pant, a. Etym: [Prov. E. flip to move nimbly; cf. W. llipa soft,
limber, pliant, or Icel. fleipa to babble, prattle. Cf. Flip, Fillip,
Flap, Flipper.]
1. Of smooth, fluent, and rapid speech; speaking with ease and
rapidity; having a voluble tongue; talkative.
It becometh good men, in such cases, to be flippant and free in their
speech. Barrow.
2. Speaking fluently and confidently, without knowledge or
consideration; empty; trifling; inconsederate; pert; petulant.
"Flippant epilogous." Thomson.
To put flippant scorn to the blush. I. Taylor.
A sort of flippant, vain discourse. Burke.
Flip"pant, n.
Definition: A flippant person. [R.] Tennyson.
Source: Webster’s Unabridged Dictionary 1913 Edition