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

Replacing what Tocchet brought in Vancouver won’t be easy, and Canucks management is very much in the early stages of a process to identify a new bench boss that the club sincerely believed wouldn’t be required this summer. —Harman Dayal, New York Times, 30 Apr. 2025

It could be interpreted as either sincerely thanking or trolling Dallas general manager Nico Harrison, who made the trade with Rob Pelinka that brought Luka to L.A. and changed the trajectory of the Lakers. —Jim Alexander, Oc Register, 23 Apr. 2025

The Kremlin has been giving the U.S. and Ukraine a run-around on ceasefire proposals, pushing maximalist demands and reneging on agreements while maintaining that Russia sincerely desires peace. —Timothy Nerozzi, The Washington Examiner, 18 Apr. 2025

No end-times scenario—however sincerely held—gives us permission to turn away from injustice. —David Faris, MSNBC Newsweek, 11 Apr. 2025

Word History

First Known Use

1560, in the meaning defined above

Rhymes for sincerely

• cavalierly
• austerely
• severely
• clearly
• dearly
• merely
• nearly
• queerly
• yearly