Webster's 1828 Dictionary
FLIPPANCY
n.[See Flippant. ] Smoothness and rapidity of speech; volubility of tongue; fluency of speech.
Webster's 1913 Dictionary
FLIPPANCY
FLIPPANCY Flip "pan *cy, n.Etym: [See Flippant. ]
Defn: The state or quality of being flippant. This flippancy of language. Bp. Hurd.
New American Oxford Dictionary
flippancy
flip pan cy |ˈflipənsē ˈflɪpənsi | ▶noun lack of respect or seriousness; frivolousness: she was infuriated by his careless flippancy.
Oxford Dictionary
flippancy
flip |pancy |ˈflɪp (ə )nsi | ▶noun [ mass noun ] lack of respect or seriousness; frivolousness: she was infuriated by his careless flippancy.
American Oxford Thesaurus
flippancy
flippancy noun your flippancy was inappropriate during an obviously serious moment: frivolity, levity, facetiousness; disrespect, irreverence, cheek, impudence, impertinence; sauce, sassiness. ANTONYMS seriousness, respect.
Oxford Thesaurus
flippancy
flippancy noun as someone bereaved through the disease, I was upset by the flippancy with which you dealt with it: frivolousness, levity, superficiality, shallowness, glibness, thoughtlessness, carefreeness, irresponsibility, insouciance, offhandedness; disrespect, irreverence, facetiousness, cheek, cheekiness, pertness, overfamiliarity; Brit. informal sauciness; N. Amer. informal sassiness. ANTONYMS seriousness; respect.
Sanseido Wisdom Dictionary
flippancy
flip pan cy /flɪ́p (ə )nsi /名詞 U 不まじめ (さ ).