sincerely
9 synonyms and 0 antonyms for sincerely, grouped by meaning and by how common each one is.
Adv — In a genuine, heartfelt manner.
Synonyms
Everyday swaps
Common words most readers know — safe in any writing.
Less common
Still standard English, but they carry more weight.
Rare, literary or technical
Precise, but they will stand out — check the sense before using one.
Etymology
From sincere + -ly, from Latin sincērus (“pure, clean, sound”).
Full origin of sincerely →Frequently asked questions
What does “sincerely” mean?
The word “sincerely” means in a genuine, heartfelt manner. In plain terms, genuinely; also the standard sign-off before your name in formal letters.
How do you pronounce “sincerely”?
“Sincerely” is pronounced sihn-SEER-lee (/sɪnˈsɪɹli/ in IPA).
How do you use “sincerely” in a sentence?
Here is “sincerely” used in a sentence: “She sincerely hopes the project succeeds.”
What is another word for “sincerely”?
Words with a similar meaning to “sincerely” include genuinely, honestly and truthfully.
What part of speech is “sincerely”?
“Sincerely” is an adverb.
Is “sincerely” a common word?
“Sincerely” is a fairly common word in modern English.
How many meanings does “sincerely” have?
“Sincerely” has 2 distinct senses listed in this dictionary. The most common is: in a genuine, heartfelt manner.
What is the difference between 'Yours sincerely' and 'Yours faithfully'?
In British letter-writing, 'Yours sincerely' is used when you have addressed the recipient by name (for example, 'Dear Mr Smith'), while 'Yours faithfully' is used when you have not (for example, 'Dear Sir or Madam'). American English generally uses 'Sincerely' in both cases.
What is the difference between 'Sincerely' and 'Best regards' in an email?
'Sincerely' is a fairly formal sign-off suited to serious or official messages. 'Best regards' is warmer and more neutral, making it a common choice for everyday professional emails where 'Sincerely' might feel too stiff.
Should 'sincerely' be capitalised in a letter closing?
Yes. When 'Sincerely' or 'Yours sincerely' closes a letter or email, the first word is capitalised and is followed by a comma before your name. Only the first word takes a capital, so it is 'Yours sincerely,' not 'Yours Sincerely.'
How do you use 'sincerely' in the middle of a sentence?
Outside letter closings, 'sincerely' means in a genuine, heartfelt way, as in 'I sincerely apologise' or 'she sincerely believed it.' Used like this, it stresses that the feeling behind the words is real.