The word "arrivers" generally refers to people who have just arrived at a particular place. In order to find antonyms for this word, we need to look for words that denote the opposite of arrival or reaching a destination. Some of the antonyms for "arrivers" could be "departers," "leavers," "exitors," "absentees," or "outgoers." While "arrivers" connotes a sense of presence and arrival, these antonyms refer to the opposite of that- departure, absence, or leaving a place. The context in which the word is used would determine which antonym would be most appropriate to use.