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.”
Synonyms: dag (Australian), doofus, dork, dweeb, geek, goober, loser, propeller head