QUICK ANSWER
"No matter" is a conjunction which is often translated as "sin importar", and "never mind" is a phrase which is often translated as "no importa". Learn more about the difference between "no matter" and "never mind" below.
no matter(
no
mah
-
duhr
)A conjunction is a word that connects words, phrases, clauses, or sentences (e.g., The cat and the dog slept.).
a. no direct translation
This refers to an idiomatic word or phrase for which there is no word-for-word translation.
I want you to buy it, no matter what it costs.Quiero que lo compres, cueste lo que cueste.
No matter how hard he tried, he couldn't hit the target.Por mucho que se esforzara, no consiguió dar en el blanco.
b. sin importar
It seemed he always ended up in the same place, no matter what direction he walked in.Parecía que siempre acababa en el mismo lugar, sin importar en qué dirección caminara.
c. independientemente de
No matter what you do, the result will always be the same.Independientemente de lo que hagas, el resultado siempre será el mismo.
An interjection is a short utterance that expresses emotion, hesitation, or protest (e.g., Wow!).
a. no importa
I'm sorry. Dr. Jenkins is not here today. - No matter! I'll call again tomorrow.Lo siento. El doctor Jenkins no está hoy. - ¡No importa! Volveré a llamar mañana.
never mind(
neh
-
vuhr
maynd
)A phrase is a group of words commonly used together (e.g., once upon a time).
a. no importa
I'm so sorry. I left the book at home. - Never mind.Lo siento mucho. Se me olvidó el libro en casa. - No importa.
b. olvídalo
Never mind, I'll pick it up myself on the way home.Olvídalo, ya lo recojo yo de camino a casa.
a. no te preocupes (informal) (singular)
A word or phrase used to refer to the second person informal “tú” by their conjugation or implied context (e.g., How are you?).
A word or phrase that is singular (e.g., el gato).
Do you want to go to the movies with me? - No, I have to study. - Never mind. I can go with Jim.¿Quieres ir al cine conmigo? - No, tengo que estudiar. - No te preocupes, puedo ir con Jim.
b. no se preocupe (formal) (singular)
A word or phrase used to refer to the second person formal “usted” by their conjugation or implied context (e.g., usted).
A word or phrase that is singular (e.g., el gato).
I forgot to file the report. - Never mind. It can wait till Monday.Se me olvidó presentar el informe. - No se preocupe. Puede hacerlo el lunes.
a. no se preocupen (plural)
A word or phrase that is plural (e.g., los libros).
We forgot to mention we'd be a little late. - Never mind. You're here now.Se nos olvidó decir que llegaríamos algo tarde. - No se preocupen. Ahora ya están aquí.
