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From Middle French sincérité, from Latin sinceritas, sinceritatem, from sincerus + -tas.


  • IPA(key): /sɪnˈsɛɹəti/
  • Rhymes: -ɛɹəti
  • Hyphenation: sin‧cer‧i‧ty
  • (file)


English Wikipedia has an article on:

sincerity (countable and uncountable, plural sincerities)

  1. The quality or state of being sincere; honesty of mind or intention; freedom from simulation, hypocrisy, disguise, or false pretense.
    • c. 1603–1604, William Shakespeare, “The Tragedie of Othello, the Moore of Venice”, in Mr. William Shakespeares Comedies, Histories, & Tragedies: Published According to the True Originall Copies (First Folio), London: Printed by Isaac Iaggard, and Ed[ward] Blount, published 1623, OCLC 606515358, [Act II, scene iii]:
      I protest, in the sincerity of love.
    • (Can we date this quote by Knox and provide title, author's full name, and other details?)
      Sincerity is a duty no less plain than important.
    • (Can we date this quote by George Burns and provide title, author's full name, and other details?)
      Sincerity is everything. If you can fake that, you’ve got it made.



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Part or all of this entry has been imported from the 1913 edition of Webster’s Dictionary, which is now free of copyright and hence in the public domain. The imported definitions may be significantly out of date, and any more recent senses may be completely missing.
(See the entry for sincerity in
Webster’s Revised Unabridged Dictionary, G. & C. Merriam, 1913.)