flippant
adjective
[ ˈflɪp(ə)nt ]
• not showing a serious or respectful attitude.
• "a flippant remark"
Similar:
frivolous,
superficial,
shallow,
glib,
thoughtless,
carefree,
irresponsible,
insouciant,
offhand,
disrespectful,
irreverent,
facetious,
cheeky,
pert,
overfamiliar,
impudent,
impertinent,
flip,
saucy,
sassy,
Origin:
early 17th century: from flip1 + -ant, perhaps on the pattern of heraldic terms such as couchant and rampant . Early senses included ‘nimble’ and ‘talkative’, hence ‘playful’, giving rise to the current use ‘lacking seriousness’.
