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Showing results for sincere. Search instead for sinauers.
Synonyms

sincere

American  
[sin-seer] / sɪnˈsɪər /

adjective

sincerer, sincerest
  1. free of deceit, hypocrisy, or falseness; earnest.

    a sincere apology.

    Synonyms:
    unaffected, guileless, open, honest, candid, frank
    Antonyms:
    false
  2. genuine; real.

    a sincere effort to improve; a sincere friend.

    Antonyms:
    false
  3. pure; unmixed; unadulterated.

  4. Obsolete. sound; unimpaired.


sincere British  
/ sɪnˈsɪə /

adjective

  1. not hypocritical or deceitful; open; genuine

    a sincere person

    sincere regret

  2. archaic pure; unadulterated; unmixed

  3. obsolete sound; whole

"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

Synonym Usage

See earnest 1.

Other Word Forms

Etymology

Origin of sincere

First recorded in 1525–35; from Latin sincērus “pure, clean, untainted”

Explanation

Being sincere is being genuine. If someone compliments you on your outfit, but you notice them rolling their eyes when they think you’re not looking, they probably weren't being sincere. If you've been offered a sincere thanks for something you've done, the person is probably really grateful. Sometimes when people say "thank you," they don't always mean it, but when they add the adjective sincere, the emphasis is usually for a very good reason. You may hear a charity sending out a sincere thanks to sponsors for their donations, which help keep the charity running.

Keep Reading on Vocabulary.com

Vocabulary lists containing sincere

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

Maybe Vance’s just-asking-questions routine is a sincere effort to fix that.

From Slate Sep. 11, 2026

“He didn’t say he hated Trump,” interjected his wife Lila Trask, 79, who thinks the teacher is sincere.

From The Wall Street Journal Sep. 10, 2026

Senior coroner Penelope Scholfield opened and adjourned the inquest to March 2027 and offered her "sincere condolences" to the wider family.

From BBC Sep. 2, 2026

"Both Mr Kushner and Mr Witkoff are always welcome guests here, and we are glad to work with them," he said, describing them as "sincere".

From Barron's Sep. 2, 2026

I hesitated, not knowing if he was being sincere.

From "It All Comes Down to This" by Karen English

“There is no sincerer love than the love of food,” reads the slip of paper.

From Washington Post Apr. 21, 2015

Guarantee us peace," begged Mr. Guinness, "and Germany will find she has no sincerer and no more useful friend in the world than Britain!

From Time Magazine Archive

Another Richmond editorial said, “There will in all the earth be no sincerer mourners than the people of the southern section of this Union.”

From "Ambushed!" by Gail Jarrow

The men who "preached Christ of envy and strife" bore evidently the Christian name as openly as their sincerer brethren.

From Philippian Studies Lessons in Faith and Love from St. Paul's Epistle to the Philippians by H. C. G. (Handley Carr Glyn) Moule

He spent the greatest part of it abroad; and at the end of that period we met with the sincerer joy, from finding we were not deceived in our hopes.

From A Description of Millenium Hall And the Country Adjacent Together with the Characters of the Inhabitants and Such Historical Anecdotes and Reflections As May Excite in the Reader Proper Sentiments of Humanity, and Lead the Mind to the Love of Virtue by Sarah Scott

“Skydive Perris offers its sincerest condolences to the individual’s family and politely asks for privacy as we mourn together as a community,” according to the statement.

From Los Angeles Times Jun. 2, 2026

A spokesperson for Coronation Street said: "We're very sorry to hear of Alan Rothwell's passing and extend our sincerest condolences to his family at this very sad time."

From BBC May 14, 2026

Parody, in this case, is the sincerest form of flattery.

From The Wall Street Journal Apr. 21, 2026

"What happened today in Teotihuacan hurts us deeply. I express my sincerest solidarity to the people affected and their families," Sheinbaum wrote.

From Barron's Apr. 20, 2026

"May I express my sincerest apologies for the illness of your mother, our queen," I say with a bow, and kiss two fingers to place at my heart.

From "The Belles" by Dhonielle Clayton

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