The phrase "most promulgated" implies the abundance or widespread dissemination of something. Antonyms for this phrase may include "rarely shared," "infrequently distributed," "seldom dispersed," or "rarely disseminated." These words indicate that the object, idea, or message has not been widely circulated or popularized. Antonyms for "most promulgated" also include "unpopular," "unrecognized," or "ignored." These words suggest that the object, idea, or message has not received much attention or recognition from a wider audience. In contrast to "most promulgated," these antonyms highlight the scarcity or unpopularity of something.