Incomplete bitcoin transaction - apologise
Incomplete bitcoin transaction - are mistaken
What happens if your transaction is never confirmed?
A transaction's state is binary in regard to the current chain tip. Either it's confirmed and thus the money has changed hands, or it's unconfirmed and the money is still in the sender's wallet.
Thus if a transaction is never confirmed, the money is still the sender's. Since this question was asked, the block space demand has grown towards the block size limit, and most wallets have added support to rectify such a situation. For example Bitcoin Core added the calls and , and will now activate Opt-in RBF with the coming 0.14.0 release, Electrum has added Opt-in RBF a while back already, Bitcoin Wallet app allows you to rescan the chain and thus forget unconfirmed transactions, etc.
However, one thing that you should keep in mind is that any signed transaction is still valid until at least one of the used inputs is spent in another transaction. Should the fee levels drop too much lower levels later, your transaction could still get confirmed if anyone rebroadcasts it. Therefore, after a failed transaction, you might want to make sure that you move all involved coins once.
Also see this related question: Why is my transaction not getting confirmed and what can I do about it?
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