PLUPERFECT Meaning of PLUPERFECT in English [plu.per.fect] adj [ME pluperfyth, modif. of LL plusquamperfectus, lit., more than perfect] (15c) 1: past perfect 2: utterly perfect or complete -- pluperfect n Merriam-Webster English vocab. Английский словарь Merriam Webster. 2012