Antonyms for "having reference to" can vary depending on the context of the sentence. If the sentence relates to a specific topic or subject matter, antonyms could include "disregarding," "ignoring," "unrelated," or "irrelevant." Alternatively, if the sentence pertains to a physical location, antonyms could be "separate," "apart," or "distant." In terms of emotions or attitudes, antonyms could include "disconnected," "unfamiliar," "unrelated," or "unconcerned." It is essential to understand the context and meaning of the sentence to identify the appropriate antonyms for "having reference to.