"Nobodiness"

Nobodiness, as King describes it, is the feeling of being completely ignored, to be invisible, to have no authority whatsoever.  He says that to feel the sense of "nobodiness" is to have no respect given to one because they don't "deserve" it.  When King mentions his daughter asking about the amusement park and not being able to experience it because of her skin color, the depressing thoughts of loneliness, injustice, and "nobodiness" flash through her mind.  She thinks she's not good enough or her enjoyment isn't valued as much before her feelings turn to anger and bitterness.  Also, when King talks about the women of color and not being respected enough to even have the courtesy of being referred to as "Mrs".  Usually they would be called that by people of lower ranks, but according to society at that time, there wasn't anyone inferior to them, making the women feel like "nobody", like they don't matter at all.  The sense of worthlessness and "nobodiness" was very common during the times of segregation.