you pay tx fee per kb, so its very low and most likely will never be processed if any other tx is pending. technicaly you could resend it. i think the tx will be canceld after 2 weeks (not sure on the time).
I have a similar situation. I was withdrawing from Cryptopia to CLI wallet (generated from paper wallet). I generated payment ID, hit withdraw and now transaction hangs in 'pool' since as shown from 'show_transfers' for hours now.
Is there anything I can do? Thank you.