24 Synonyms Antonyms of SPEARHEADING MerriamWebsterAlternate terms for spearheading include guiding, forgesetting, advocating, being at the forefront of, being the vanguard of, propelling, being a driving force behind, nurturing as well as heralding. Synonyms to synonym include equivalent as well as link to thesaurus. Information optimized for the keyword synonym spearheading can be designed to entice and inform readers.