Takes along is a phrasal verb that usually refers to bringing something or someone along on a journey or activity. The opposite of this phrasal verb could be "leaves behind" or "abandons." If you take something or someone along, you don't leave them behind, but if you don't take them, you leave them. Thus, the antonyms of "takes along" could be "leaves," "stays," "remains," "excludes." Depending on the context, there might be other antonyms as well, such as "rejects," "disregards," "ignores." Antonyms for "takes along" would be useful when you want to express the opposite idea or when you need to explain what you are not doing.