nerd

noun

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

  "a comic-book nerd"

• 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."

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