Sentence:  “I've told you,” a man's voice was insisting, “You've been given it all— every strip.” The portable lamps, clipped to the overhead beams, revealed three figures. The two shabby <WSD>nethermen</WSD> moved like clumsy predators; ... 
Meaning of the word marked with <WSD> tags:  An inferior man or inferior status of mankind, as opposed to superman.