What does "unconfirmed" (in Electrum) mean as label for transactions?
Does it mean:
1) Transaction is succesffully added to Mempool
or
2.) Transaction is successfully added to block and waiting for 3 (or 6) more blocks to be really seen as stable/confirmed?
The first.
It changes to something different when it gets accepted in a block but doesn't have enough confirmations (I don't remember what that is though).
It gets a tick when it's fully confirmed.
If you right click and click "details" then you can see how many confirmations a trensaction has "unconfirmed" means no confirmations.