imperative

• adj.必要な、避けられない; 緊急な; 命令的な、専制的な; [言語]命令的な; [言語]懇願的な
• n. 必要なこと；命令；必要；規則；[言語]命令形

語源は帝国、帝国、帝政と同じ。すなわち、皇帝の命令、派生重要、命令形。inimical, enemy, invidious, envyと比較される。

imperative

imperative: see empire

imperative (adj.)

1520s, from Late Latin imperativus "pertaining to a command," from imperatus "commanded," past participle of imperare "to command, to requisition," from assimilated form of in- "into, in" (see in- (2)) + parare "prepare" (see pare).

imperative (n.)

mid-15c., in grammar; later "something imperative" (c. 1600), from Old French imperatif and directly from Late Latin imperativus (see imperative (adj.)).

1. It was imperative that he act as naturally as possible.

最も重要なのは彼ができるだけ自然にすることだ。

2.It is absolutely imperative that we finish by next week.

私たちの当面の急務は来週中に完成しなければならないことです。

3.Job creation has become an imperative for the government.

雇用創出は政府がしなければならないことだ。

4.He always speaks in an imperative tone of voice.

彼はいつも命令口調で話している。

5.The imperative mood is a kind of grammatical phenomenon.

祈りの語調は文法現象である。