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[sin-seer] /sɪnˈsɪər/
adjective, sincerer, sincerest.
free of deceit, hypocrisy, or falseness; earnest:
a sincere apology.
genuine; real:
a sincere effort to improve; a sincere friend.
pure; unmixed; unadulterated.
Obsolete. sound; unimpaired.
Origin of sincere
First recorded in 1525-35, sincere is from the Latin word sincērus pure, clean, untainted
Related forms
sincerely, adverb
sincereness, noun
quasi-sincere, adjective
quasi-sincerely, adverb
1. frank, candid, honest, open, guileless; unaffected. See earnest1 .
1, 2. false. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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Examples from the Web for sincerer
Historical Examples
  • A far more sober artist than Hugo, he was also a far profounder thinker, and a sincerer man.

    Landmarks in French Literature G. Lytton Strachey
  • I am indeed—but no man, as to you, Madam, ever had a sincerer heart.

    Clarissa, Volume 3 (of 9) Samuel Richardson
  • To Lucilius he pays also the sincerer tribute of frequent imitation.

    The Roman Poets of the Republic William Young Sellar
  • There is a sincerer strain in the book than in some of its predecessors.

    Egoists James Huneker
  • It was fortunate for letters that they had sincerer friends in London than Wolsey.

  • He had the "gift of gab," yet he was no humbug; indeed, a sincerer parson does not exist.

    Iconoclasts James Huneker
  • In a happy hour the collector with his treasury and the teacher, pining for some fresher and sincerer melodies, met together.

    The Morris Book Cecil J. Sharp
  • There are no sincerer words in his letters than those which relate to Mrs. Pope.

    The Age of Pope John Dennis
  • Also deep down in his mind he had a sincerer and quite secret reason for reticence, whereof more in its proper place.

    Lysbeth H. Rider Haggard
  • But as her friend he could have wished her a freer and sincerer inspiration.

British Dictionary definitions for sincerer


not hypocritical or deceitful; open; genuine: a sincere person, sincere regret
(archaic) pure; unadulterated; unmixed
(obsolete) sound; whole
Derived Forms
sincerely, adverb
sincerity (sɪnˈsɛrɪtɪ), sincereness, noun
Word Origin
C16: from Latin sincērus
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 sincerer



1530s, "pure, unmixed," from Middle French sincere (16c.), from Latin sincerus, of things, "whole, clean, pure, uninjured, unmixed," figuratively "sound, genuine, pure, true, candid, truthful," of uncertain origin. Ground sense seems to be "that which is not falsified." Meaning "free from pretense or falsehood" in English is from 1530s.

There has been a temptation to see the first element as Latin sine "without." But there is no etymological justification for the common story that the word means "without wax" (*sin cerae), which is dismissed out of hand by OED and others, and the stories invented to justify that folk etymology are even less plausible. Watkins has it as originally "of one growth" (i.e. "not hybrid, unmixed"), from PIE *sm-ke-ro-, from *sem- "one" (see same) + root of crescere "to grow" (see crescent).

Online Etymology Dictionary, © 2010 Douglas Harper
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