Spearheaded definition of spearheaded by The Free DictionarySynonym terms of initiating are directing, paving the way for, advocating, taking the lead in, being the vanguard of, igniting, being a driving force behind, encouraging as well as inaugurating. Other words for alternative involve word with similar meaning and definition of synonym. Text optimized to target the keyword spearheading alternative word can be designed to entice and inform readers.