Home › Words › F › forethinkerforethinkerforethinker means one who thinks ahead, or plans things in advance.Among words judged in Lexicurio's Arena, forethinker ranks #6,387 of 42,762 for Qualifying.EtymologyFrom forethink + -er.nounOne who thinks ahead, or plans things in advance.Definitions & examples from Wiktionary (CC BY-SA 3.0).