名詞 pluperfect:

1. a perfective tense used to express action completed in the past
   同義詞：past perfect, past perfect tense, pluperfect tense

形容詞 pluperfect:

1. more than perfect

plu.per.fect

adj.（形容詞）
Grammar Of, relating to, or being a verb tense used to express action completed before a specified or implied past time.
【語法】 過去完成時的：屬于、關(guān)于或成為一個被用來表示在一特定或暗示的過去時間之前完成動作的動詞的
More than perfect; supremely accomplished; ideal:
極完美的，極好的：更加完美的；超一流地完成的；理想的：
例句：
.He has won a reputation as[a] pluperfect bureaucrat. (New York Times)
.他贏得了 超級官僚的名聲. (紐約時報)

n.Grammar （名詞）【語法】
The pluperfect tense, formed in English with the past participle of a verb and the auxiliaryhad, as had learned in the sentence He had learned to type by the time the semester was over. Also called past perfect
過去完成時：過去完成時態(tài)，在英語中由一個動詞的過去分詞加助動詞had 構(gòu)成，如 had learned 在 He had learned to type by the time the semester was over（在那個學(xué)期結(jié)束之前他學(xué)會了打字）一句中 也作 past perfect
A verb or form in the pluperfect tense.
過去分詞：過去完成時態(tài)下的動詞或形式

來源：
Middle English pluperfyth
中古英語 pluperfyth
alteration of Latin plôs quam perfectum [more than perfect]
拉丁語 plôs quam perfectum的變化 [極完美的]
plôs [more] * see pel…-
plôs [更多的] *參見 pel…-
quam [than]
quam [比…]
perfectum [neuter past participle of] perficere [to complete] * see perfect
perfectum [] perficere的中性過去分詞 [完成] *參見 perfect