sincere
Americanadjective
adjective
-
not hypocritical or deceitful; open; genuine
a sincere person
sincere regret
-
archaic pure; unadulterated; unmixed
-
obsolete sound; whole
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.
Vocabulary lists containing sincere
The SAT: Words to Capture Tone, List 2
Looking to grow your vocabulary? Check out this interactive, curated word list from our team of English language specialists at Vocabulary.com – one of over 17,000 lists we've built to help learners worldwide!
ACT Reading Test: Words to Capture Tone, List 1
Interested in learning more words like this one? Our team at Vocabulary.com has got you covered! You can review flashcards, quiz yourself, practice spelling, and more – and it's all completely free to use!
The New SAT: Words to Capture Tone
Want to remember this word for good? Start your learning journey today with our library of interactive, themed word lists built by the experts at Vocabulary.com – we'll help you make the most of your study time!
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:
Christodoulides' spokesman Konstantinos Letymbiotis said the pair held "a substantive and sincere discussion" and expressed hope it would lead to concrete developments by the year's end when Guterres's mandate ends.
From Barron's ● Jul. 28, 2026
Education Minister Alpha Bacar Barry said he was "deeply saddened by the news" and extended his "sincere condolences" to the family.
From BBC ● Jul. 23, 2026
A South Korean judge criticized Chey for failing to express a sincere view about his responsibility.
From The Wall Street Journal ● Jul. 23, 2026
A spokesperson for the Met said they "recognise the considerable distress caused to Mr Linehan, and have offered our sincere apologies".
From BBC ● Jul. 9, 2026
“Sorry ’bout that,” she says in a sincere voice.
From "Dragons in a Bag" by Zetta Elliott
![]()
“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
![]()
I prefer your opinion to a painter's; it's certainly sincerer.
From General Bramble by Maurois, André
And if you had been a bolder lover and a sincerer friend, you would not have found yourself in this case.
From The Comedies of Carlo Goldoni edited with an introduction by Helen Zimmern by Goldoni, Carlo
"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
Life-altering in the sincerest sense of the word, “The Mother Lode” comedically chronicles Rosebud Baker’s journey into motherhood, in real time.
From Los Angeles Times ● Dec. 10, 2025
The Army said it offered its "sincerest condolences" to Gunner Beck and her family.
From BBC ● Oct. 31, 2025
Please accept my sincerest apology for my disrespectful behavior in not attending the opening ceremony.
From "Endgame" by Frank Brady
![]()
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.