The phrase "most nonexistence" may seem like an odd one, but there are several synonyms that convey a similar meaning. One may say "almost nonexistent," "barely existent," or "hardly present" to describe something that is almost imperceptible. "Negligible," "insignificant," and "inconsequential" are also good synonyms for "most nonexistence," as they suggest something of little importance or barely noticeable. When referring to a lack of action or effort, the phrases "passive," "inert," or "inactive" may be appropriate. Regardless of the specific synonym used, the term "most nonexistence" implies that something is barely there, lacking in importance, or unlikely to produce results.