sincerely

adverb

sin·​cere·​ly sin-ˈsir-lē 

sən-

: in a sincere or truthful way : with truth, genuineness, or straightforwardness

apologizing sincerely

I am sincerely sorry for your loss.

George Clooney, a pleasant man, tries sincerely to give some credibility to Kelvin, and if he doesn't earn our belief, at least he has our sympathy.

—Stanley Kauffman

The room was quiet until a student in the back of the room let out an enormous belch and said, not too sincerely, "Sorry."

—E. L. Konigsburg

—often used as a complimentary close with or without yours

… Thank you for your attention to this matter. Sincerely, Robert Brown

… Sincerely yours, John Smith

… Yours sincerely, Jane Doe

Synonyms

• artlessly
• guilelessly
• ingenuously
• innocently
• naively
• naïvely
• naturally
• unaffectedly
• unfeignedly
• unpretentiously

Examples of sincerely in a Sentence

thanked them sincerely for their help

Recent Examples on the Web

Acknowledge the issue publicly, apologize sincerely and outline steps to address it. —Expert Panel®, Forbes, 15 Jan. 2025

Perhaps the country had too many of its own idols—or perhaps, as the new musical biopic Better Man argues, Williams was too gleefully self-deprecating to sincerely make the sales pitch. —David Sims, The Atlantic, 14 Jan. 2025

To the entire Carter family, thank you—sincerely—for sharing them both with America and the world. —Paul Du Quenoy, Newsweek, 9 Jan. 2025

All this said, why not take a minute on Christmas to sincerely thank your own genuine Santa? —Mike Masterson, arkansasonline.com, 24 Dec. 2024

Word History

First Known Use

1560, in the meaning defined above