The phrase "gat on one's nerves" means to irritate, bother or annoy someone. Antonyms for this phrase would be words or phrases that convey the opposite meaning, such as "calm", "soothe", "relax", or "pleasure". Instead of "gat on one's nerves", one could use phrases like "ease one's mind", "bring joy", "peaceful", or "relieve stress". Using antonyms can help express a different tone or convey a different message while still addressing the same idea. Finding appropriate antonyms can help in effectively communicating and connecting with people with different preferences and background.