It's when a transaction has been pushed by blockchain to get confirmed till the user doesn't try to send it again with a higher fee and if not, it gets repeated. It happened with me as well when my transaction received on 22nd Feb remained unconfirmed for 3 days and it again got repeated on the 25th by blockchain. It stops when blockchain drops the transaction.


@OP: Your transaction has already been dropped by blockchain. You should see the coins back in your wallet. Try sending the coins with a higher or recommended fee this time.