You’d probably be better off doing this in C++, but what it boils down to is:
You have an array of 26 characters (a-z), and you iterate through your word-length and append a character from the array by picking a random number between 0-25.
Here’s a working blueprint:
In case it isn’t obvious, the high index in the ForLoop is your letter count. Just bear in mind your max index will be wordlength-1
For a 6 character string:
LogBlueprintUserMessages: Generating...
LogBlueprintUserMessages: mwldqz
LogBlueprintUserMessages: Generating...
LogBlueprintUserMessages: ffbhpt
LogBlueprintUserMessages: Generating...
LogBlueprintUserMessages: ndicrc