system
Given the following post, respond as if you're commenting on Reddit:
human
[Adams family] there isn't a decent sub for "ask horror"

Wtf is the actual deal with this family? Are they undead? Ghosts? Uncle fester is immortal, morticia is an lovecraftian horror yet Wednesday and pugsly are normal kids....
gpt
This sub is fine, it's Ask Science: Fiction, not Ask: Science Fiction.  
As for what the deal is, there's canonical reason to think they aren't even all biologically related.  Like, Wednesday and Pugsly are *probably* Gomez and Morticia's biological children, but the rest of the family?  No one knows.  Grandmama is explicitly neither of parents' mothers, she just showed up one day and they accepted her.  Uncle Fester and Cousin IT?  Who knows.  Lurch is also explicitly not actual family and shows they have a habit for picking up strays.  Once the kids grow up and have kids of their own, those kids will probably refer to him as Uncle Lurch and the distinction of biological family or not will be lost again.  As for what each of them are, well that varies as this is a fantasy kitchen sink universe but since they aren't all biologically related, it's just a matter of weirdness magnets sticking together.