Definitions

1. adjective

used to describe a verb form in Latin grammar that is the past perfect tense; used to describe something that is past perfect

“The professor explained the intricacies of Latin verb conjugation, including the pluperfect tense.”

2. noun

the past perfect tense of a verb, especially in Latin grammar; something that is past perfect

“The writer struggled to translate the pluperfect from Latin to English.”

3. adverb

used to describe something that is past perfect

“By the time I arrived, he had already eaten, and his plate was pluperfectly clean.”