no matter

no matter

1. It doesn't matter; it's not important. A: "Sir, we're running low on supplies." B: "No matter, we'll be pulling into port shortly." I could have dropped him off when I went out to get groceries, but no matter.
2. Regardless of; irrespective of. We'll get her the very best treatment available, no matter the cost!
See also: matter, no
Farlex Dictionary of Idioms.

no matter

1. It's not important, as in She wasn't home when I came by, but no matter. [Mid-1500s]
2. Also, no matter what. Regardless, it makes no difference, as in No matter what I say, she'll do what she likes, or The car must be repaired, no matter what. [Mid-1500s]
See also: matter, no
The American Heritage® Dictionary of Idioms by Christine Ammer.

no matter

Regardless of: "Yet there isn't a train I wouldn't take, / No matter where it's going" (Edna St. Vincent Millay).
See also: matter, no
American Heritage® Dictionary of the English Language, Fifth Edition.
See also:
  • record
  • it is a matter of (doing something)
  • any way
  • be a matter of (doing something)
  • be a matter of something/doing something
  • no matter what
  • the matter at hand
  • not matter tuppence
  • not matter twopence
  • for that matter