Argentinian /ɑɹˌd͡ʒənˈtɪ.nɪ.ən/adjective 1noun 1forms 1 adjective1 •Of, from, or pertaining to Argentina and the Argentine people.The FCO also disputes Fernández's claim that Britain kicked out the island's original Argentinian inhabitants. — 2013 noun1 •A person from Argentina or of Argentine descent. formsArgentinians