Synonyms of 'no matter'
▷ See matter
don't worry about it
'I'm really sorry.' 'Never mind, it happens to me all the time.'
it doesn't matter
it makes no difference or odds
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Thesaurus for no matter from the Collins English Thesaurus
You say ' no matter ' after you have just asked a question or mentioned an idea or doubt and you have decided that it is not really important , interesting, or worth discussing .