The word "be spraying" means to apply liquid or particles onto a surface or area through a dispenser or nozzle. Some antonyms for this term include "dry," "dust," or "wipe." If you want to remove something from a surface instead of applying it, you can use "clean," "rinse," or "dampen." To prevent the spread of something, you can use "contain" or "seal." Other antonyms include "stain," "dye," or "color" if you want to avoid changing the appearance of the surface being treated. Choosing the right antonym depends on the specific meaning and context in which "be spraying" is used.