Meaning & Definition
adverb
In a sincere manner; genuinely and without pretense.
I sincerely appreciate your help with the project.
Used to express a genuine feeling or belief.
She sincerely hopes for your success.
Often used at the end of a letter to express goodwill.
Sincerely, John Smith.
Used to indicate that something is not intended as a joke or sarcasm.
I sincerely think you would excel in that position.
Etymology
From Middle English 'sincerly', from Old French 'sincer', from Latin 'sincerus'.
Common Phrases and Expressions
Yours sincerely:
A formal way to close a letter indicating truthfulness.
Sincerely yours:
A similar formal closing in correspondence.
Sincerely mean:
Expressing true feelings without deceit.
Slang Meanings