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[in-sin-seer] /ˌɪn sɪnˈsɪər/
not sincere; not honest in the expression of actual feeling; hypocritical.
Origin of insincere
1625-35; < Latin insincērus tainted, dishonest; see in-3, sincere
Related forms
insincerely, adverb
deceitful, disingenuous, guileful, two-faced. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the Web for insincerely
Contemporary Examples
Historical Examples
  • "Fortunately it doesn't matter, as Julian is late too," said Mrs. Maldon insincerely, for it was mattering very much.

    The Price of Love Arnold Bennett
  • “But after night it is so very dark on the trail to camp,” he insincerely objected.

    Red Men and White Owen Wister
  • Still less, that she would be made happy by his insincerely pretending to be of the same religion.

    On Compromise John Morley
  • "You—you'll have to have patience," Henley remarked, insincerely.

    Dixie Hart Will N. Harben
  • "Well, but she couldn't know all about me," said George insincerely.

    The Roll-Call Arnold Bennett
  • There are those who, sincerely or insincerely, still cling to State action as a theoretical hope.

  • Those, who had insincerely supported the measure, became the dupes of their own insincerity.

    Handbook of Home Rule (1887) W. E. Gladstone et al.
  • Sandford and Merton is most insincerely recommended by many folk to children to-day.

    Child Life in Colonial Days Alice Morse Earle
  • She begged permission, either sincerely or insincerely, to retire to the convent of Port Royal.

British Dictionary definitions for insincerely


lacking sincerity; hypocritical
Derived Forms
insincerely, adverb
insincerity (ˌɪnsɪnˈsɛrɪtɪ) noun
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for insincerely



1620s (implied in insincerely), from Latin insincerus "not genuine, not pure, adulterated," from in- "not" (see in- (1)) + sincerus (see sincere).

Online Etymology Dictionary, © 2010 Douglas Harper
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