adverb

sinceramente

honestly

De manera honesta y sin intención de engañar; expresando lo que se piensa o se siente de verdad.

Definition & meaning

Sinceramente means “sincerely,” “honestly,” or “frankly.” It can describe doing something genuinely, or introduce a candid opinion.

  • Te agradezco sinceramente tu ayuda. — “I sincerely thank you for your help.”
  • Sinceramente, no me gusta la idea. — “Honestly, I don’t like the idea.”

Grammar & Word origin

It is an adverb formed from sincera , the feminine form of sincero (“sincere”), plus the adverb-forming suffix -mente.

Synonyms & antonyms

Synonyms

  • honestamente — “honestly”; especially close when introducing a candid opinion.
  • francamente — “frankly”; emphasizes directness, sometimes with less concern for politeness.
  • de corazón — “from the heart”; emphasizes genuine feeling.

Antonyms

  • insinceramente — “insincerely”; without genuine feeling.
  • falsamente — “falsely”; emphasizes deception or a lack of truth.

Common phrases & collocations

  • sinceramente tuyo — “sincerely yours,” used as a letter closing.
  • agradecer sinceramente — “to thank sincerely.”
  • hablar sinceramente — “to speak honestly.”

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Examples

Sinceramente, no esperaba esa reacción de tu parte.adverb

Honestly, I did not expect that reaction from you.

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