The phrase "doeth thing" can be considered outdated or archaic, and therefore may not have commonly used antonyms in modern English. However, if we were to consider the meaning of the phrase as performing an action, some antonyms that could be used are "abstain," "avoid," "cease," or "neglect." These words suggest a lack of action or intentional avoidance. Alternatively, antonyms for the verb "do" include "undo," "reverse," and "cancel," which refer to the act of undoing or stopping an action that has been previously done. It's important to note that the choice of antonym depends on the context of the original phrase and the intended meaning.