Of or being a verb tense used to express action completed before a specified or implied past time.
More than perfect; supremely accomplished; ideal: "He has won a reputation as [a] pluperfect bureaucrat"(New York Times).
n.
The pluperfect tense, formed in English with the past participle of a verb and the auxiliary had, as had learned in the sentence He had learned to type by the end of the semester. Also called past perfect.
A verb or form in the pluperfect tense.
[Middle English pluperfyth, alteration of Latin plūs quam perfectum, more than perfect : plūs, more; see pelə-1 in Indo-European roots + quam, than + perfectum, neuter past participle of perficere, to complete; see perfect.]
(plōō-pûr'fĭkt) 