impromptu

名词 impromptu:

1. an extemporaneous speech or remark
2. a short musical passage that seems to have been made spontaneously without advance preparation

形容词 impromptu:

1. with little or no preparation or forethought
   同义词：ad-lib, extemporaneous, extemporary, extempore, offhand, offhanded, off-the-cuff, unrehearsed

副词 impromptu:

1. without advance preparation
   同义词：ad lib, ad libitum, spontaneously

1. An impromptu visit broke up the long afternoon.
   突然的造访打破了漫长的午后时光
2. It usually take me more than three weeks to prepare a good impromptu speech.
   为了准备一则即席的好讲辞，我通常要三个星期以上。

im.promp.tu

adj.（形容词）
Prompted by the occasion rather than being planned in advance:
即兴的：即兴的而不是事先有准备的：
例句：
an impromptu party.
即兴的聚会

Spoken, performed, done, or composed with little or no preparation; extemporaneous:
即席的，无准备的：毫无准备地说、表演、做或作曲的；临场的：
例句：
a few impromptu remarks.See Synonyms at extemporaneous
一些临场的评论参见 extemporaneous

adv.（副词）
With little or no preparation; extemporaneously.
没有准备地；临场地
n.（名词）
Something, such as a speech, that is made or done extemporaneously.
即兴作的东西，如讲演
Music A short lyrical composition especially for the piano.
【音乐】 即兴曲：一则短的抒情曲子，特别是钢琴曲

来源：
French
法语
from Latin in prômptô [at hand]
源自 拉丁语 in prômptô [手头的]
in [in] * see in- 2
in [在…里面] *参见 in-2
prômptô [ablative of] prômptus [readiness] [from past participle of] prômere [to bring forth] * see prompt
prômptô [] prômptus的夺格 [机智] [] 源自prômere的过去分词 [产生] *参见 prompt