unnoticed
Not noticed.

unnoticing
Not noticing.

unnotified
Not having been notified.

unnoting
Not noting; failing to pay attention or observe.

unnotorious
Not notorious.

unnourishable
Not nourishable.

unnourished
Not nourished.

unnourishing
Not nourishing.

unnoxious
Not noxious.

unnozzled
Not fitted with a nozzle.

unnuanced
Not nuanced.

unnucleated
Not nucleated.

unnudged
Not nudged.

unnullified
Not nullified.

unnumbed
Not numbed.

unnumberable
That cannot be numbered; too numerous to count.

unnumbered
Not identified with a number.
Too numerous to be counted.

unnumeraled
Not numeraled.

unnumerical
Not numerical.

unnumerous
Not numerous; few in number.

unnursed
That has not been nursed.

unnurtured
That has not been nurtured.

unnurturing
Not nurturing.

unnutritious
Not nutritious.

unnutritive
Not nutritive.

unnymphlike
Not nymphlike.

unoaked
Not oaked.

unoared
Not supplied with oars; oarless.
Unvisited by boats.

unobdurate
Not obdurate.

unobese
Not obese.

unobeyable
That cannot be obeyed.

unobeyed
Not obeyed.

unobeying
That does not obey; disobedient.

unobfuscatable
Not obfuscatable; which cannot be obfuscated.

unobfuscated
Not obfuscated.

unobjected
Without objection; without being objected to.

unobjectifiable
That cannot be objectified.

unobjectified
Not objectified.

unobjectifying
Not objectifying.

unobjecting
Making no objection; compliant.

unobjectionable
Not objectionable; not causing any objection.

unobjectional
Not objectional.

unobjective
Not objective

unobligated
Not obligated.

unobligatory
Not obligatory.

unobliged
Not obliged.

unobliging
Not obliging; disobliging; unhelpful, disobedient.

unobliterable
Incapable of being obliterated.

unobliterated
Not obliterated.

unoblivious
Not oblivious.

unobnoxious
Not obnoxious.

unobscene
Not obscene.

unobscurable
Not obscurable; which cannot be obscured.

unobscure
Not obscure.

unobscured
Not obscured.

unobsequious
Not obsequious.

unobservable
That cannot be observed.

unobservables
plural of unobservable

unobservant
Not observant.

unobserved
Not seen or observed.

unobserving
Failing to observe something; unobservant.

unobsessed
Not obsessed.

unobsessive
Not obsessive.

unobstinate
Not obstinate.

unobstreperous
Not obstreperous.

unobstructable
Unable to be obstructed.

unobstructed
Not obstructed.

unobstructible
Alternative form of unobstructable.

unobstructive
not obstructive

unobstruent
Not obstruent.

unobstrusive
Misspelling of unobtrusive.

unobtainable
Unable to be obtained: not able to be acquired or reached.

unobtainables
plural of unobtainable

unobtained
That has not been obtained.

unobtruded
Not obtruded.

unobtruding
That does not obtrude.

unobtrusive
Not obtrusive; not blatant or noticeable; discreet, inconspicuous.

unobtunded
Not obtunded.

unobturated
Not obturated.

unobtuse
Not obtuse

unobviated
Not obviated.

unobvious
Not obvious.

unoccasional
Not occasional.

unoccasioned
Not occasioned.

unoccidental
Not occidental.

unoccluded
Not occluded.

unocclusive
Not occlusive

unocculted
Not occulted

unoccupied
Not inhabited, especially by a tenant
Not being used; vacant or free
Not employed on a task; idle
Not occupied by foreign troops etc

unoccurring
That does not occur.

unoceanic
Not oceanic.

unocular
Alternative form of uniocular.

unodious
Not odious.

unodoriferous
Not odoriferous.

unodorized
Not odorized

unodorous
Not odorous.

unoecumenical
Alternative form of unecumenical.

unoffendable
That cannot be offended.

unoffended
Not offended.

unoffending
Not offending.

unoffensive
inoffensive

unoffered
Not offered.

unofficed
Not assigned a duty or position of responsibility.

unofficered
Without an officer.

unofficerlike
Not officerlike.

unofficial
Not officially established.
Not officially established.
Not acting with official authority.
Not listed in a national pharmacopeia etc.

unofficialized
Not made official.

unofficiated
Without officiant or referee in control.

unofficiating
Not officiating.

unofficinal
Not officinal.

unofficious
Not officious.

unoffset
Not offset.

unogled
Not ogled.

unoily
Not oily.

unokay
Not okay.

unominous
Not ominous.

unomitted
not omitted

unomnipotent
Not omnipotent.

unomniscient
Not omniscient.

unonerous
Not onerous.

unontological
Not ontological.

unopaque
Not opaque.

unopen
Not open; closed.

unopenable
That cannot be opened.

unopened
not yet opened; still closed

unopening
Not opening.

unoperable
Alternative form of inoperable

unoperated
Upon which no operation has been performed.

unoperatic
Not operatic.

unoperating
Not in operation.

unoperculate
Not operculate.

unoperculated
Without an operculum.

unopined
On which an opinion has not been given.

unopinionated
Not opinionated; without strong opinions.

unopinionative
Not opinionative.

unopportune
Not opportune.

unopportunistic
Not opportunistic.

unopposable
That cannot be opposed.

unopposing
Not offering opposition; unresisting.

unopposite
Not opposite.

unoppressed
Not oppressed.

unoppressing
Not oppressing.

unoppressive
Not oppressive.

unopprobrious
Not opprobrious.

unoppugned
Not oppugned.

unopsonised
Alternative spelling of unopsonized.

unopsonized
Not opsonized.

unoptimised
Alternative spelling of unoptimized.

unoptimistic
not optimistic

unoptimizable
Not optimizable.

unoptimized
Not optimized.

unoptional
Not optional.

unoptioned
Not optioned.

unopulent
Not opulent.

unoratorical
Not oratorical.

unorbed
Not formed into an orb.

unorchestrated
Not orchestrated; unarranged or off the cuff.

unordainable
Not ordainable.

unordained
Not ordained.

unorderable
Not capable of being ordered (placed into sequence).

unordered
Not having been ordered.
Not in any sorted order.

unorderly
Not orderly; chaotic, disorganized.

unordinary
Not ordinary.

unordinate
disorderly, irregular
inappropriate

unorganed
Without organs

unorganic
Not organic.

unorganical
Not organical.

unorganisable
Alternative form of unorganizable.

unorganised
Poorly organised, lacking the ability to organise.
Not organised, not having any arrangement.

unorganizable
That cannot be organized.

unorganized
Not organized: not having been organized.
Not organized: not having been organized.

unorgasmed
not having had an orgasm; without an orgasm

unorgasmic
Not orgasmic; sexless; dull.

unorgiastic
Not orgiastic.

unorientable
That cannot be oriented

unoriental
Not Oriental.

unoriented
Not oriented: lacking orientation.

unorificed
Not orificed.

unoriginate
Without origin.

unoriginated
Not originated; having existed through all eternity.
Not yet made or brought into existence.

unoriginative
Not originative.

unornamental
Not ornamental.

unornamented
Not ornamented; without ornament.

unornate
Not ornate.

unornithological
Not ornithological.

unorphaned
Not orphaned.

unorthodox
Unusual, unconventional, or idiosyncratic.

unorthodoxical
Synonym of unorthodox.

unorthogonal
Not orthogonal

unorthographic
Synonym of unorthographical.

unorthographical
Not orthographical; not conforming to rules of orthography.

unoscillated
Not oscillated; not subject to or lacking oscillation.

unoscillating
Not oscillating.

unosmicated
Not osmicated.

unosmylated
Not osmylated

unossified
Not ossified.

unostensible
Not ostensible.

unostentatious
Not ostentatious; simple; unpresuming.

unostracized
Not ostracized.

unothered
Not othered.

unotterlike
Not otterlike.

unousted
Not ousted.

unoutcrossed
Not outcrossed

unoutgrown
Not having been outgrown.

unoutlandish
Not outlandish.

unoutlawed
Not outlawed.

unoutlined
Not outlined.

unoutraged
Not outraged.

unoutrageous
Not outrageous.

unoutspoken
Not outspoken.

unoutworn
Not outworn.

unoverawed
Not overawed.

unovercomable
Impossible to overcome

unovercome
Not having been overcome.

unovercomeable
Unable to be overcome; insuperable

unoverflowing
Not overflowing.

unoverhauled
Not overhauled.

unoverloaded
Not overloaded

unoverlookable
Not overlookable.