unrealistic.adjective
not realistic; not compatible with reality or fact; 
unrealistically.adverb

unrealized.adjective
never came to pass; not achieved; not brought to realization; not made actual or real: unrealized aspirations; not converted into money (an unrealized property.asset)
unrealizable.adjective
not able to be achieved or made to happen

unclear, unclearer, unclearest.adjectives
not.clearly.defined; not explicit; not.easy to see, hear or comprehend; not obvious, definite or certain
unclearly.adverb
unclearness.noun.(normally used without being pluralized)

unacquainted.adjective
if you are unacquainted with something, you do not know about it or do not have not any experience with it (she was unacquainted with computers); not familiar or acquainted with; not informed or knowledgeable about (unacquainted with a car's standard transmission, which is far more fuel efficient than an automatic, she, nonetheless, decided for an automatic)

unrepentant.adjective
having no remorse; not being repentant; if you are unrepentant, you are not ashamed of thoughts and actions that are evil and do not think of consequences before acting
unrepentantly.adverb

unresisting.adjective
not showing, producing or putting up any resistance
unresisted.adjective
unresistingly.adverb

unfulfilled.adjective
if you use unfulfilled to describe something such as a promise, ambition or need, you mean that what was promised, hoped for or needed has not come for you (he was angry at unfulfilled promises of jobs and decent housing); someone feeling unfulfilled is one who is dissatisfied with his or her lot in life, perhaps because they feel that what they have done was never good enough

undone.verb
past participle of undo
undo, undid, undone, undoing, undoes.verbs
transitive verb use.to reverse or erase; annul; to untie, disassemble or loosen (undo a shoelace); unwrap; unravel
intransitive verb use.to come open or unfastened (the zipper broke on my jacket so it came undone)
undoer.noun,.plural.undoers

unsuspecting.adjective
not suspicious; trusting
unsuspectingly.adverb

unstudied.adjective
not contrived for effect; natural (unstudied grace); not gained by study or instruction (unstudied talent)

umbrella.noun,.plural.umbrellas
a device for protection from the weather consisting of a collapsible, usually circular.canopy.mounted on a central rod; something that covers or protects
umbrellaless.adjective

uncelebrated.adjective
not famous or well known; obscure; not honored

upend, upended, upending, upends.verbs
transitive verb use.to stand, set or turn on one end (to upend someone's opinion; to upend an oblong box); to overturn or overthrow; if you upend something, you turn it upside down; to affect to the point of being upset or flurried (internet trolls paid to seek out and alter true opinons, so that those paying for the deceit benefit)
intransitive verb use.to be upended

underworld.noun,.plural.underworlds
a region, realm or dwelling place below the surface of the Earth, known as the tunnels and the D.U.M.B.s, Deep Underground Military Bases; the world of those strange creatures created by the satanic side, whose minions on the surface steal children and adults for evil purposes, such as for being abused, harvested for adrenochrome, genetically modified and murdered, hoarding the people stolen into these tunnels and cages beneath the Earth's surface; the antipodes; also, the part of society that is engaged in and organized for the purpose of crime and vice

unutterable.adjective
that cannot be uttered or expressed ("the unutterable beauty of being alive" ...John Peale Bishop); unspeakable; being beyond the one's ability to clearly describe at the time; inexpressible
unutterably.adverb
unutterableness.noun,.plural.unutterablenesses

unsung.adjective
unsung is used to describe people, things or places that are not appreciated or praised, although you think they deserve to be; not honored or praised; uncelebrated (a war won by unsung heroes); in music, not sung (unsung hymns)

unilateral.adjective
of, on, relating to, involving or affecting only one side; done by only one side (politicians deciding what it is they want for We the People; emphasizing or recognizing only one side
unilaterally.adverb
unilateralism.noun,.plural.unilateralisms
the belief that what one thinks, authorities will force to be correct for everybody (a politicians favorite authoritarian.expletive is 'we have decided', in other words, it doesn't matter what you may think of it
unilateralist.adjective & as a.noun,.plural.unilateralists

uncomplicated.adjective
not complex or involved; simple (found the uncomplicated solution of building a cob home)

unruffled.adjective
not agitated; calm; cool; regular and smooth, as the surface of water; not ruffled

uraninite.noun,.plural.uraninite
a complex brownish-black mineral, chemical element number UO2, forming the chief ore of uranium and containing variable amounts of radium, lead, thorium and other elements

uranium.plural noun
uranium is a naturally occurring radioactive.metal that is used to produce the now outdated nuclear.energy form of producing energy and weapons; uranium is a silvery heavy radioactive polyvalent metallic element that is found especially in uraninite and exists naturally as a mixture of mostly nonfissionable.isotopes; the name comes from date 1700-1800 A.D. and the planet Uranus because the substance uranium was discovered soon after the planet; there is uranium 23, uranium 235 and uranium 238; uranium 23, date 1940, is a light isotope of uranium of mass number 235 that constitutes less than one percent of natural uranium, that when bombarded with slow neutrons.undergoes.rapid.fission into smaller atoms with the release of neutrons and energy and that is used in nuclear reactors and atomic bombs; uranium 23, date 1942, is also an isotope of uranium of mass number 238 that is the most stable uranium isotope, that constitutes over 99 percent of natural uranium that is not fissile but can be used to produce a fissile isotope of plutonium and that, has a half-life of 4.5 billion years; uranium-234-uranium-238 dating the method of age determination making use of the radioactive decay of uranium-234 to uranium-238; the method can be used for dating sediments from either a marine or a playa lake environment; because this method is useful for the period 100,000 to 1.2 million years before the present, it helps in bridging the gap between the carbon-14 dating method and the potassium-argon dating method

unmotivated.adjective
having no motive or incentive

unattractive.adjective
unattractive people and things are unpleasant in appearance
(a cold and cloud covered city made it unattractive and uninteresting during most of the year); if you describe something as unattractive, you mean that people do not like it and do not want to be involved with it

upbringing.noun,.plural.upbringings
the rearing and training received during childhood

unhesitating.adjective
prompt to act, move or express oneself; ready; unfaltering; stedfast; not hesitating
unhesitatingly.adverb

unfaltering.adjective
not faltering; being steady or resolute; firm; not wavering or weakening (the family members have unfaltering loyalty to each other)
unfalteringly.adverb

unrebutted.adjective
not rebutted

uneven, unevener, unevenest.adjectives
not even; not equal in size, length or quality (an uneven contest); not consistent or uniform (an uneven color as in the same patterns on the dress were not as vivid near the top); not smooth or level (the uneven surface of a cobblestone road); rough; not straight or parallel (uneven margins)
unevenly.adverb
unevenness.noun,.plural.unevennesses