Antonyms for the word "most long continued" may include brief, short, temporary, fleeting, impermanent, improvised or spontaneous. These words connote the opposite meaning of "most long continued," which implies something that lasts for a long time. A brief or short duration refers to something that is of limited length or duration. Temporary, fleeting, or impermanent suggests that something is not lasting, but limited in time or duration. Improvised or spontaneous word's meanings are also different from "most long continued," indicating something unprepared or unplanned. Therefore, these antonyms provide readers with alternative interpretations of the term "most long continued.