perfective /pə(ɹ)ˈfɛktɪv/adjective 3noun 1forms 3 adjective3 •Of, or relative to, the perfective aspect. •Of, or relative to, a perfect tense. •(no longer used) Tending to make perfect, or to bring to perfection. noun1 •A perfective verb form. formsperfectives · more perfective · most perfective