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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:

Now comes Good Hang, the hit podcast that sends her straight into listeners’ ears without a shred of armor from a fictional character, just a voice that bounds from joyful to subversive to sincere.

From The Wall Street Journal ● Oct. 28, 2026

I’m prepared to believe United CEO Scott Kirby’s concern about wealth inequality is sincere.

From The Wall Street Journal ● Oct. 25, 2026

Jordan Firstman’s sincere, funny and genuinely moving debut feature has him playing a queer New York underground party promoter blindsided by the arrival of the 10-year-old son previously unknown to him.

From Los Angeles Times ● Oct. 12, 2026

On Tuesday, it emerged she wrote a letter in 2016 to the New York judge in the Pham case describing him as "one of the kindest, honest, most sincere" people she had known.

From BBC ● Oct. 6, 2026

There was something rather sincere and pathetic about her going off to a shop in London and buying me these books because she knew I was fond of painting.

From "Rebecca" by Daphne du Maurier

“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

They are really no sincerer than Sackcloth and Ashes.

From Chapters from My Autobiography by Mark Twain

It seems to me that in these matters the sincerer we are, the better it is for all parties.

From The Fourth Estate, vol. 2 by Armando Palacio Vald?s

After Stodden reposted and questioned the clip earlier this week, Alexander said he was "deeply sorry" and offered her his "sincerest apologies".

From BBC ● Jul. 23, 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

If imitation truly is the sincerest form of flattery, perhaps Americans should take a bow.

From The Wall Street Journal ● Feb. 12, 2026

"Your Highness, I hope I have done nothing to offend you, but if I have, my sincerest apologies," Astrid stammers out.

From "The Belles" by Dhonielle Clayton

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