音标:[.ʌn'presidentid] ; 柯林斯词典等级:2 级;
a. 空前的
[经] 空前的, 无前例的
a. having no precedent; novel

考试类型:[六级/托福/GRE]
词性分布:
形容词100%

unprecedented的用法和样例:

例句

用作形容词(adj.)
  1. We are seeing unemployment on an unprecedented scale.我们现在正经历规模空前的失业现象。
  2. His statement made an unprecedented splash.他的声明引起了空前的轰动。
  3. The air crash caused an unprecedented number of deaths.这次空难的死亡人数是空前的。
  4. Some economists showed their anxiety on unprecedented level of unemployment.一些经济学家对失业率达到前所未有的程度表示忧虑。
  5. Our school faced unprecedented difficulties.我们学校碰到了前所未有的困难。

词汇搭配

  • unprecedented rise空前涨价

经典引文

  • We are entering an age of abundance unprecedented in history.

    出自:A. E. Stevenson
【近义词】
【反义词】

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学英语单词
18-hydroxydehydrogenase
addressable horizontal positions
advance money on security
alkylidenes
asymmetric fabry-perot optical modulator
at tubayq
axis of stress
Azeptin
basket wave coil
Beeringgnurding, Mt.
Bekal
birthday
block out something
cap product
circular hd. (the nut)
closed-cell foam
convulsively
copia element
core and winding assembly
customs re entry permit
Darende
deionisations
diaoyu
discomyza maculipennis
document key
documento
dormant season
economic hierarchy scheme
enthalpy of absorption
epipteric
fenocchi
fuzzy expert system
gyppy
hook phototransiustor
hosed
host timed out
idiom recognition
insterburg (chernyakhovsk)
interception
intestine nerve fiber
isocytolysin
isopropylphenylbiphenyloxadiazole
keep careful watch on
language arts
laser flash photolysis
megatomostethus maculatus
merrik
metacarpal artery
nautical meteorology
nekomimis
nephrocyte
nipple shield
pagne
pay in advance
Pilley's I.
pipeline pump
plagiarized
platelet function regulator
Poisson's integral
polylithic
porcelaneous chert
pseudomalletia taliensis
purpura angioneurotica
radioisotope diagnostic equipment
Ramsbottom coke test
random reducibility
rational act
re-generation
red-tag
reduced suspension
relative band width
residual regression method
rhamnosterin
rhizophydium collapsum
Rosellinia sorbaria
sample purity
search memory
sediment space
shitbreaths
short beer
shunt regulation
so-called ex-officio oath
sodium acid pyrophosphate
solar radiation pressure
spike filter
standard ratios
subtutors
sundancer
Tanen Taunggyi (Thanon Thong Chai)
the cockles of the heart
thirsty
thrast
Torilis
two-stroke single-acting
unbloomed
uncertainty relation
unhandy ship
vitaceous
voice-band
W Ursac Majoris star
What are these
William, Prince