音标:[ʌn] ;
pref. 不, 不会的, 无, 未, 非
[医] 不
An inseparable verbal prefix or particle. It is prefixed: (a) To
verbs to express the contrary, and not the simple negative, of the
action of the verb to which it is prefixed; as in uncoil, undo, unfold.
(b) To nouns to form verbs expressing privation of the thing, quality,
or state expressed by the noun, or separation from it; as in unchild,
unsex. Sometimes particles and participial adjectives formed with this
prefix coincide in form with compounds of the negative prefix un- (see
2d Un-); as in undone (from undo), meaning unfastened, ruined; and
undone (from 2d un- and done) meaning not done, not finished. Un- is
sometimes used with an intensive force merely; as in unloose.
adv. An inseparable prefix, or particle, signifying not; in-;
non-. In- is prefixed mostly to words of Latin origin, or else to words
formed by Latin suffixes; un- is of much wider application, and is
attached at will to almost any adjective, or participle used
adjectively, or adverb, from which it may be desired to form a
corresponding negative adjective or adverb, and is also, but less
freely, prefixed to nouns. Un- sometimes has merely an intensive force;
as in unmerciless, unremorseless.
adv. Un- is prefixed to adjectives, or to words used adjectively.
adv. To adjectives, to denote the absence of the quality
designated by the adjective
adv. To past particles, or to adjectives formed after the analogy
of past particles, to indicate the absence of the condition or state
expressed by them
adv. To present particles which come from intransitive verbs, or
are themselves employed as adjectives, to mark the absence of the
activity, disposition, or condition implied by the participle; as, -
---- and the like.
adv. Those which have acquired an opposed or contrary, instead of
a merely negative, meaning; as, unfriendly, ungraceful, unpalatable,
unquiet, and the like; or else an intensive sense more than a prefixed
not would express; as, unending, unparalleled, undisciplined,
undoubted, unsafe, and the like.
adv. Those which have the value of independent words, inasmuch as
the simple words are either not used at all, or are rarely, or at least
much less frequently, used; as, unavoidable, unconscionable,
undeniable, unspeakable, unprecedented, unruly, and the like; or
inasmuch as they are used in a different sense from the usual meaning
of the primitive, or especially in one of the significations of the
latter; as, unaccountable, unalloyed, unbelieving, unpretending,
unreserved, and the like; or inasmuch as they are so frequently and
familiarly used that they are hardly felt to be of negative origin; as,
uncertain, uneven, and the like.
adv. Those which are anomalous, provincial, or, for some other
reason, not desirable to be used, and are so indicated; as, unpure for
impure, unsatisfaction for dissatisfaction, unexpressible for
inexpressible, and the like.
adv. Un- is prefixed to nouns to express the absence of, or the
contrary of, that which the noun signifies; as, unbelief, unfaith,
unhealth, unrest, untruth, and the like.

un-的用法和样例:

词汇搭配

  • a red un<俚>金表
  • a stiff un参照 un
学英语单词
al-banna
annular threaded nail
battleships
bids up
biocontrols
butadiene-styrene-vinylpyridine rubber
calcisphere
Carabaya, Cord.de
carry the can
certificate of conformity
Chainsk
circumcentre of a triangle
classicizes
computations
conifer garden
correlation length
designated
designation card
dial peer
Dimethylsulfone
document and chart facsimile equipment
double-focusing mass-spectrograph
ejector drilling head
electron-beam sustainer-pumped laser
epilogisms
flaw-piece
food and drug
foreign body finder
garcia-navarro
grammatical markers
group delay-frequency characteristics
haulage engine
heliopore
high speed gauge
high-frequency jack
high-pressure flange
highbrow publications
hot oil centrifugal pump
import of technology
judiciaires
kantele, kantela
Kareliya, Respublika
kebayas
kopriva
kraft papers
kreb
Lasegue
lens assembly
let there be
level of measurement
long period oscillation damping
Lyubcha
Mabote
mangerite
maritime sanitation devices
melt coloration technique
microcalipers
mixotropic series
moisture extractor
multiple exchange rate
narody
natural circulation water-cooled reactor
net economic benefit
nodesize
nonprogrammatic
papal statess
pedestal pile
philosophied
phytotoxicant
pituitary stalk
porn merchant
pothole politician
proper subclass
pseudo-field
public-address
radio wave penetration system
railway mail service
railway point of frogs
Ramesses the Great
regelii
repenting
residual claimancy
reversed controller
riggio
scientific pay-off
segregated oil
Senior Controller
shove past
single strap lap joint
Spasmocylon
spcs
statement of transfers from IBRD
stem-end rot
suspension hook
technical equations
theory of subjective value
to mic
to put the cat among the pigeons
UB
wanks
weather gage
xanthomonas cirti (hasse)dowson