The term "mechanical people" commonly refers to individuals who behave in a robotic and unemotional manner. Synonyms for this term include automatons, androids, robots, cyborgs, drones, and even zombies. These words all describe beings or behaviors that lack human emotion or expression, and instead operate in a rigid and predictable manner. While some of these terms may refer specifically to machines or fictional creatures, they all share the connotation of a lifeless and mechanized existence. Synonyms such as "robotic," "unfeeling," and "heartless" convey similar meanings and suggest a detachment or disinterest in human connections or emotions.