Zapper, often associated with electric fly swatters or remote controls, is a word with a very specific meaning. The antonyms for a swatter or remote control would be difficult to pin down, but for the broader sense of 'zapper' - a device that makes a loud noise, something that catches the attention or excitement of someone, we can look at words like "calm", "boring", "dull", "tedious" that stand as potential antonyms. In a broader cultural context, where "zapper" means someone who switches channels on the television or quickly moves from one task to another, antonyms might include "planner", "diligent", "patient", "pensive", or "thoughtful".