flippancy
/ˈflɪp(ə)nsi
/noun [mass noun]
Lack of respect or seriousness; frivolousness: she was infuriated by his careless flippancy...
- He started cracking jokes, contrasting the flippancy of opposition politics with the weight of responsibility he had to bear.
- The photographs reveal that there is space for laughter, for flippancy, for beauty and fun in a country beset with internecine and identity-based troubles.
- To some he appeared disorganized, slapdash, cheerful to the point of flippancy.
Synonyms
frivolousness, levity, superficiality, shallowness, glibness, thoughtlessness, carefreeness, irresponsibility, insouciance, offhandedness;
disrespect, irreverence, facetiousness, cheek, cheekiness, pertness, overfamiliarity
British informal sauciness
North American informal sassiness