Nerd

noun

1. (sometimes derogatory) A person who is intellectual but generally introverted
2. (sometimes derogatory) One who has an intense, obsessive interest in something.

   "a comic-book nerd"

3. An unattractive, socially awkward, annoying, undesirable, and/or boring, person; a dork.

   "Nerds seem to have fun with each other, but in a way that causes others to laugh at them."

4. (post-1980s) A member of a subculture revolving around video games, fantasy and science fiction, comic books and assorted media.