headmost

coming before all others in time or order <the headmost horse shied at the sight of a snake> Synonyms earliest, foremost, first, inaugural, initial, leadoff, maiden, original, pioneer, premier, virginRelated Words ancient, early, primal, primary, prime, primeval, primitive, primordial; antecedent, preceding, previousNear Antonyms advanced, late; consequent, ensuing, following, subsequent, succeeding; penultimateAntonyms final, last, latest, latter, terminal, terminating, ultimate