unusual	| adjective: Not common or ordinary.
incontestability	|
uncertain	|
uncertainty	|
disapprove	|
uncommon	|
unreliability	|
unsureness	|
nonspecific	|
unsure	|
afraid#2	| 1% idiom: "Afraid not"
incredibility	|
unselfish	|
uncontested	|
untold	|
inexact	|
counteraction	|
undaunted	|
unfit	|
disprove	|
unknown	| noun-adj: Not known
implausible	|
disadvantageous	|
indecisiveness	|
incomplete	|
unsteady	|
unbelievable	|
ceaseless	|
unbound	|
unqualified	|
unwillingness	|
insecure	|
undue	|
unprepared	|
unlikelihood	|
nullification	|
irresistible	|
impatience	|
involuntary	|
insecurity	|
irresponsible	|
discourage#1	|
inseparable	|
discourage#2	|
nullify	|
unsound	|
unstable	|
account#8	| 3% adv: "On no account"--under no circumstances
unfavorable	|
unrestricted	|
disbelief	|
indescribable	|
unjust	|
inexpensive	|
negation	|
no#1	| 42% adj: Not any
discomfort	|
won't	| verb: Contraction for "will not"
no#5	| 5% idiom-pron: "No one"
no#6	| 4% idiom-adv: "No longer"--expresses termination of a state or action--  handled by "long"
unwise	|
indirect	|
none	| pronoun: Not one, not any.
uneven	|
untrustworthy	|
disavowal	|
insignificant	|
informal	|
undeniable	|
improbability	|
unequivocal	|
unnecessary	|
unjustified	|
untouched	|
unpleasant	|
unreal	|
invisible	|
indistinct	|
incorrect	|
indecisive	|
undependability	|
irregular	|
unwavering	|
inaccessible	|
indecision	|
unfortunate#2	| 49% adv: "Unfortunately"--inauspiciously
unleash	|
indefinite	|
unprecedented	|
disagreeable	|
non	|
dislike#1	| 71% verb: To have an aversion toward
unfinished	|
dislike#2	| 29% noun: An aversion
unhurried	|
impossible#2	| 6% noun: That which cannot be done
impossible#1	| 94% adjective: Not able to be done, happen, etc.
unbroken	|
uncomfortable	|
aversion	|
not	| adv: Expresses negation
dispute#1	|
dispute#2	|
undoubtedly	|
unchecked	|
nor	| conjunction: Used in negative phrases--negative or
discontent	|
unequal	|
undefined	|
don't	|
inadequate	|
invariable	|
disavow	|
indistinguishable	|
unsuccessful	|
noiseless	|
improbable	|
invariably	|
negate	|
unquestionable	|
unavoidable	|
unaware	|
undisputed	|
unfortunate#1	| 49% adj: Unlucky, inauspicious
unfortunate#3	| 3% noun: "Unfortunates" - unlucky people
undoubted	|
unconscious	|
incompatible	|
invincible	|
unimportant	|
indisputable	|
least#3	| 4% idiom-adv: '(not) in the least,' (not) at all
unable	| adj: Not able
contrary	|
indifferent	|
disorganized	|
unforgettable	|
unsatisfactory	|
nobody	| pron: No person, a person of no importance
opposite	| noun-adj: Anything symmetrically opposed, antithetical
incalculable	|
unspecified	|
unassured	|
unpredictable	|
impossibility	|
cannot	| verb: A form of can not.
infallible	|
lull	|
undo	|
insufficient	|
incompatibility	|
counteract	|
disadvantage	|
undetermined	|
irrefutable	|
vice#3	| 10% idiom-adv: "Vice versa" - conversely
no#2	| 49% adv: Used as interjection expressing refusal, denial, etc., or with  comparatives meaning "not at all"
irregularity	|
instable	|
incontestable	|
can't	| verb: Contraction of "cannot"
discontinue#2	|
discontinue#1	|
unlikely	|
rather#1	| 44% adv: Instead, on the contrary, instead of, "rather than," etc.
untrue	|
dissimilar	|
unemployment	|
unfailing	|
disagreement	|
unfair	|
inexplicable	|
unlucky	|
unexpected	|
incapable	|
unreliable	|
neither	| adj-pron-conj: Not either
undependable	|
unconditional	|
infrequent	|
unclear	|
sans	|
never	| adv: Not ever, not at all
unsteadiness	|
undone	|
contradictory	|
displeasure	|
unauthentic	|
unsoundness	|
unrealistic	|
discount#2	|
mean#5	| 1% idiom-adv: "By no means"--not at all
unhappy	| adj: Sad, unfortunate
unimpeachable	|
unmitigated	|
sleepless	|
innumerable	|
uneasy	|
intangible	|
ain't	|
undecided	|
inability	|
instability	|
unwilling	|
undid	|
unlike	|
incredible	|
invulnerable	|
unlimited	|
unmistakable	|
implausibility	|
matchless	|
nothing	| noun-adv: Not anything--not a thing, not at all
inconceivable	|
disorder	|
unchanged	|
unquestioned	|
