Spanish vocabulary · Intermediate
How to Say Sincerely in Spanish: Sinceramente or Atentamente
Sinceramente · adverb · seen-seh-rah-MEHN-teh
Sincerely in Spanish is sinceramente (honestly) as an adverb, or atentamente as a formal letter closing.
Sinceramente is seen-seh-rah-MEHN-teh, five syllables with stress on MEHN.
Sinceramente, no creo que esa sea la mejor opción.
Sincerely, I don't think that's the best option.
Sincerely in Spanish: Quick Reference
Below are the most common Spanish words for sincerely, with pronunciation and regional usage notes.
| Spanish | English | Pronunciation | Region / Register |
|---|---|---|---|
| sinceramente | sincerely | seen-seh-rah-MEHN-teh | Default, widely understood |
| atentamente | sincerely | formal letter closing (Sincerely yours) | |
| cordialmente | sincerely | alternative formal closing |
How Native Speakers Use Sinceramente
Real example sentences across three contexts you'll actually run into.
Honest opinion
Sinceramente, pienso que deberías buscar otro trabajo.
Sincerely, I think you should look for another job.
Giving honest advice.
Formal letter closing
Quedo a su disposición. Atentamente, María García.
I remain at your service. Sincerely, María García.
Formal correspondence closing.
Expressing genuine feeling
Te lo digo sinceramente: estoy muy orgulloso de ti.
I tell you sincerely: I'm very proud of you.
Heartfelt personal expression.
Avoid These Mistakes When Using Sinceramente
Using sinceramente as letter closing
Incorrect: Gracias por su atención. Sinceramente, Juan.
Correct: Gracias por su atención. Atentamente, Juan.
In formal Spanish letters, atentamente is the standard closing equivalent to Sincerely yours; sinceramente means honestly/frankly.
Spelling error
Incorrect: Sincermente, no me gusta.
Correct: Sinceramente, no me gusta.
The word has five syllables and must include the full -era- in the middle: sin-ce-ra-men-te.
Lock in Sincerely Vocabulary with the Parrot Method
Why word lists alone don't stick
Memorizing a translation feels productive, but most learners forget 70% of what they studied within 48 hours. Vocabulary needs spaced repetition AND real-world exposure to transfer to long-term memory.
See Sinceramente used by native speakers
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Common Questions About Sincerely in Spanish
- How do you say sincerely in Spanish?
- For everyday use meaning honestly or truthfully, use sinceramente; for the letter-closing Sincerely yours, the standard Spanish equivalent is atentamente.
- How do you close a formal letter in Spanish?
- The most common formal closings are atentamente (sincerely), cordialmente (cordially), and le saluda atentamente (yours sincerely), all followed by your name.
- Can sinceramente start a sentence in Spanish?
- Sinceramente works perfectly as a sentence opener to signal you are about to share an honest opinion, similar to honestly or frankly in English.