The term "most secondsighted" can be more commonly referred to as "foresighted," "proactive," or "forward-thinking." These synonyms all imply an ability to anticipate future events and make decisions accordingly. Another related word is "prudent," which suggests careful and wise planning. "Astute" and "discerning" can also be applicable, as they denote a sharp awareness and ability to understand the situations at hand. Lastly, "visionary" and "innovative" could also be used for those who can anticipate and create new possibilities in the future. Overall, there are many synonyms for "most secondsighted," each with its own nuance and connotation.