so what

Interjection

1. (impolite, informal, rhetoric) Used to indicate indifference, often as a reply to an unimportant or irrelevant statement.
   • I lost my red shoes. – So what? Get a new pair.
   • So what if you never win at anything. You can have a great time enjoying, at your own level, the physical activity, the movement, the sensual feeling of the cold, the water, the air, the sun.1977 February 12, John Atteridg, “Who's A Good Sport Anyhow?”, in Gay Community News, volume 4, number 33, page 10

   Synonyms:

   big deal, meh, whatever, who cares, whoopee do, what of it