That cannot be achieved (or only with great difficulty)
unacquirable
unacquirable
adj
That cannot be acquired.
unactionable
unactionable
adj
Not actionable.
unalphabetic
unalphabetic
adj
(archaic) Illiterate.
unapplicable
unapplicable
adj
Not applicable.
unassociable
unbeneficial
unbeneficial
adj
Not beneficial.
uncalibrated
uncalibrated
adj
Not calibrated
uncapsizable
uncapsizable
Adjective
Not capsizable.
uncharitable
uncharitable
adj
Not charitable
uncognisable
uncognisable
adj
Alternative form of uncognizable
uncognizable
uncombinable
uncombinable
adj
Not combinable. Incapable of being combined.
uncompatible
uncompatible
adj
(nonstandard) Incompatible.
uncompliable
uncompliable
adj
unwilling to comply
unconfinable
unconfinable
adj
That cannot be confined.
uncreditable
uncreditable
adj
(obsolete) discreditable
Not to be credited or believed.
uncreditably
uncreditably
adv
In an uncreditable manner.
uncultivable
uncultivable
adj
Not capable of cultivation
undeceivable
undeceivable
adj
Not deceivable.
undeceivably
undeceivably
adv
In an undeceivable way.
undeclinable
undeclinable
adj
Synonym of indeclinable
undeclinably
unduplicable
unduplicable
adj
Impossible to duplicate.
unelicitable
unelicitable
adj
That cannot be elicited.
unenrichable
unenrichable
adj
Not enrichable.
unenticeable
unenunciable
uneradicable
uneradicable
adj
Alternative form of ineradicable
unexplicable
unexplicably
unextricable
unextricable
adj
(obsolete) Not extricable.
unimplicable
uninclinable
uninclinable
adj
Not inclinable
unincludable
unincludable
adj
Alternative form of unincludible
unindictable
unindictable
adj
Not indictable.
uninfectable
uninfectable
adj
Not infectable.
uninjectable
uninjectable
Adjective
Not injectable.
uninoculable
uninoculable
adj
Not inoculable.
unjudiciable
unlubricated
unlubricated
adj
Not lubricated
unmachinable
unmachinable
Adjective
Not machinable.
unmasticable
unmasticable
adj
Not masticable.
unnoticeable
unnoticeable
adj
Not noticeable.
unnoticeably
unnoticeably
adv
In an unnoticeable manner.
unoccupiable
unoccupiable
adv
Not occupiable
unpacifiable
unpacifiable
adj
Not pacifiable.
unpicturable
unpicturable
adj
Not picturable.
unpierceable
unpierceable
adj
That cannot be pierced.
unpredicable
unpredicable
adj
Not predicable.
unpredicably
unreceivable
unrepublican
unrepublican
adj
Not republican; contrary to the spirit of a republic
unvindicable
unvindicable
adj
Not vindicable.
vibratiuncle
vibratiuncle
noun
(now chiefly historical) A minuscule or slight vibration; specifically, a vibration in brain tissue caused by the comparatively greater vibrations of the particles of the medullary substance of the nerves (formerly hypothesised to convey external impressions to the mind).
