pluperfect
1. [ adjective ] more than perfect
Examples:

"he spoke with pluperfect precision"

Related terms: perfect
2. [ adjective ] (linguistics) of or relating to the pat perfect tense of verbs
Examples:

"pluperfect endings"

Related terms: past_perfect
3. [ noun ] (grammar) a perfective tense used to express action completed in the past
Synonyms: past_perfect_tense pluferfect_tense past_perfect
Examples:

"`I had finished' is an example of the past perfect"

Related terms: perfective