Grate on is a phrasal verb that means to irritate, annoy, or bother someone. If you want to express the opposite meaning of this verb, you can use a number of antonyms that convey positive emotions or actions. For instance, soothe, comfort, and calm are words that can be used to counteract the negative effect of grating on. Some other antonyms that can be used for grate on include satisfy, delight, please, and fascinate. These words convey a sense of pleasure, contentment, and satisfaction, which are the opposite of the unpleasant feelings associated with being grated on. Using these antonyms can help you choose your words carefully and convey your message with greater clarity and impact.