sin·​cere sin-ˈsir How to pronounce sincere (audio)
sincerer; sincerest
: free of dissimulation : honest
a sincere interest
: free from adulteration : pure
a sincere doctrine
sincere wine
: marked by genuineness : true
sincereness noun
Choose the Right Synonym for sincere

sincere, wholehearted, heartfelt, hearty, unfeigned mean genuine in feeling.

sincere stresses absence of hypocrisy, feigning, or any falsifying embellishment or exaggeration.

a sincere apology

wholehearted suggests sincerity and earnest devotion without reservation or misgiving.

promised our wholehearted support

heartfelt suggests depth of genuine feeling outwardly expressed.

expresses our heartfelt gratitude

hearty suggests honesty, warmth, and exuberance in displaying feeling.

received a hearty welcome

unfeigned stresses spontaneity and absence of pretense.

her unfeigned delight at receiving the award

Examples of sincere in a Sentence

He sounded sincere in his promises. She seemed sincere in her commitment to finish school. She has a sincere interest in painting. He showed a sincere concern for her health. He made a sincere attempt to quit smoking. Please accept our sincere thanks.
Recent Examples on the Web The debate over Hughes’s convictions centers on the premise that a belief is either sincere or strategic, genuine or sham. Manvir Singh, The New Yorker, 15 Apr. 2024 Wishing Netanyahu gone is the most mainstream position possible — and one sincere friends of Israel should never be afraid to express. Bret Stephens, The Mercury News, 11 Apr. 2024 That song always seemed like a strikingly sincere moment on the album. Brian Hiatt, Rolling Stone, 11 Apr. 2024 While there can be some sincere outrage over Trump’s callous flip-flop in an election year, most of the feigned shock is for show. Philip Elliott, TIME, 9 Apr. 2024 Unfortunately, this cast a shadow over an episode otherwise filled with standout performances, giving each contestant's journey a less sincere feel. Kimi Robinson, USA TODAY, 8 Apr. 2024 But the star of the 12-season running HBO show then apologized to Elmo; the Muppet quickly accepted his seemingly sincere expression of regret. Kevin Dolak, The Hollywood Reporter, 29 Mar. 2024 Six months later Lieberman phoned Hadassah — the daughter of Holocaust survivors born in Czechoslovakia — and the two quickly bonded over their deep and sincere religious convictions. Virginia Chamlee, Peoplemag, 28 Mar. 2024 According to research from the journal of Religions, religious upbringing can tragically intertwine with chronic shame–despite sincere religious convictions and expressions of love from those who teach it. Mark Travers, Forbes, 27 Mar. 2024

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'sincere.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History


Middle French, from Latin sincerus whole, pure, genuine, probably from sem- one + -cerus (akin to Latin crescere to grow) — more at same, crescent

First Known Use

1533, in the meaning defined at sense 1a

Time Traveler
The first known use of sincere was in 1533

Dictionary Entries Near sincere

Cite this Entry

“Sincere.” Dictionary, Merriam-Webster, Accessed 21 Apr. 2024.

Kids Definition


sin·​cere sin-ˈsi(ə)r How to pronounce sincere (audio)
sincerer; sincerest
: trustworthy, straightforward
a sincere friend
: genuine sense 1, real
a sincere interest in painting
sincerely adverb

More from Merriam-Webster on sincere

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