noun, plural in·sin·cer·i·ties for 2.
Examples from the Web for insincerity
“Kids that age are incapable of insincerity,” del Cecato said.Dante de Blasio’s Killer Ad May Have Won NYC Primary for His Dad|David Freedlander|September 14, 2013|DAILY BEAST
One could make equal claims to the insincerity of just about any Israeli leader based on their words and deeds.
And, of course, this propensity for insincerity is uniquely attributed to the Palestinians; it is not applicable to Israelis.
Even the more polished, informed, self-possessed Romney seems cursed with an Eddie Haskell air of insincerity and deceitfulness.
The overwhelming majority reproached him for insincerity and hypocrisy.
It is not honest inquiry that makes anarchy; but it is error, insincerity, half-belief and untruth that make it.
"Not at all," he said, with an insincerity that annoyed her.Hilda Lessways|Arnold Bennett
The probable reason of this may be traced to the King's varying disposition—possibly to his insincerity.Memoirs of the Court of George IV. 1820-1830 (Vol 1)|Duke of Buckingham and Chandos
What if with the son, too, they betokened only insincerity and weakness?The Explorer|W. Somerset Maugham
Mr. Osmond very kind and sympathising; set it all down to illusion; assured papa there was neither malice nor insincerity in it.Hard Cash|Charles Reade