Question

abrupt
a.brupt  AHD[…-br¾pt“]   DJ[*6brJpt]  KK[*6brJpt]
adj.（形容词）
1.Unexpectedly sudden:
    意外的，突然的：
    an abrupt change in the weather.
    天气的突然变化
2.Surprisingly and unceremoniously curt; brusque.
    无理的，唐突的：令人吃惊且无理地唐突的；粗鲁的
3.Touching on one subject after another with sudden transitions:
    不连贯的，支离破碎的：涉及一个主题紧接另一个主题时两者间的突然改变的：
    abrupt prose.
    不连贯的散文
4.Steeply inclined.See Synonyms atsteep¹
    陡峭的，险峻的参见steep¹
5.Botany Terminating suddenly rather than gradually; truncate:
  【植物学】 突然折断的，截断的：突然而非逐渐停止的；截断的：
    an abrupt leaf.
    截断的叶子
ORIGIN
1.Latinabruptus [past participle of] abrumpere [to break off]
    拉丁语abruptus  [] abrumpere的过去分词 [折断]
2.ab- [away] * see  ab-¹
    ab- [远离] *参见ab-¹
3.rumpere [to break] * see  reup-
    rumpere [打断] *参见 reup-
DERIVATIVES
▪abrupt“ly  adv.（副词）
▪abrupt“ness  n.（名词）