If crypto is sent to an unintended address, the coin will be delivered as instructed. Transactions on a blockchain are permanent and cannot be cancelled or reversed. If a wrong address was provided to which you do not control – it is likely the coins are lost to that receiver. If the wrong address is controlled by yourself or a trusted contact, it may be possible to orchestrate the coin's recovery. In the latter scenario, the recipient should be contacted with a request to return the crypto.