Terms of Disrespect

The word "nerd" in English implies a specific sort of disrespect. The person is goofy and introverted, probably an expert on something arcane like comic books or Linux. And often wears a bow tie. See examples from Labeler game:

"Freak" is very disrespectful and extreme

"Guy" is less disrespectful but still shows an edge of disrespect. I think it is very unfortunate that Richard Feynman, the famous physicist, and Bruce Springsteen, the rock musician, are in this category. Being bald, or maybe gay, (or maybe dead!), seems to make you a "guy."