The opposite of the phrase "most self-moving" could vary depending on the context of its use. If the phrase pertains to an individual's motivation or drive to take action, the antonyms could be lethargic, sluggish, or apathetic. However, if it refers to the automatic functioning of a machine or device, words like fixed, stationary, and immobile could be used as antonyms. For instance, a self-moving wheelchair is mobile, agile, and dynamic, in contrast to a fixed chair, which is static and immobile. In conclusion, antonyms for "most self-moving" vary according to the context and application of the phrase.