"Grated on" means to irritate, annoy, or bother someone. Antonyms for this word would include calm, soothe, placate, appease, and reassure. When someone is grated on, they may feel tense or agitated, but when they are calmed, they feel relaxed and at ease. Soothing words and a peaceful environment can help to placate and appease a person who has been grated on. Reassurance can also be helpful in alleviating any concerns or worries that may have caused irritation. By using antonyms for "grated on", we can avoid negative interactions and promote positive communication and relationships.