The word "most relating" implies that something is closely connected or relevant. Therefore, antonyms for this phrase would include words such as irrelevant, unrelated, distant, disconnected, and unimportant. These words suggest a lack of connection or importance, showing a contrast to the original meaning. For example, if discussing a particular topic, one could say that certain information is "most relating" to the issue at hand, while other information is irrelevant or disconnected. It is important to consider antonyms when communicating to ensure clarity and precision in the message being conveyed.