The word "be grime" means to make dirty or tarnished. Its antonyms are words that denote cleanliness, purity, whiteness, and spotlessness. These words are mostly associated with hygienic, neat, and sanitary conditions.
The antonyms of "be grime" include "clean," "purify," "sanitize," "wash," "polish," "scrub," "sterilize," and "disinfect." These words connote a state of cleanliness, which is the opposite of being dirty or grimy.
Using these antonyms in sentences would make more sense. For example, "I need to clean my house as it is too grimey." can be written as "I need to sanitize my house as it is too dirty.