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

Word History

First Known Use

1560, in the meaning defined above