How do I delete an iCloud acctount without password
How do I delete an iCloud account without a password
When an Apple ID account is created it needs the mail address essential with a password see the article https://support.apple.com/en-in/guide/mac-help/mh35903/10.14/mac/10.14
It consists of an email address (for example, emilyparker@icloud.com) and a password.
So without password its impossible to delete the account https://support.apple.com/en-in/HT208504
How to permanently delete your Apple ID
Sign in to your Apple ID account page on a Mac, PC, iPhone, or iPad. Then scroll down to Data and Privacy and select "Manage Your Data and Privacy." On the following page, select "Get started" under "Delete your account.