12 letter adjectives

Are you looking for 12 letter adjectives? Then, the following list of over over 2460 adjectives is for you. All these 12 letter adjectives are validated using recognized English dictionaries.

Adjectives in laymen words are the class of words that used to describe, clarify or modify a noun or a pronoun. Adjectives give extra information about the focused object's size, quantity, age, color, shape etc. to make the focused object obvious. Therefore, when adjectives are used the language becomes captivating. Based on the nature adjectives are categorized as Descriptive adjectives, Quantitative adjectives, Demonstrative adjectives etc. By using the following 12 letter adjectives, you can make your language skills interesting and vibrant.

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12 letter adjectives that start with a

  • abbreviatory
  • aberrational
  • abirritative
  • absentaneous
  • absinthiated
  • absolutistic
  • acanthaceous
  • accelerative
  • acceleratory
  • acclimatable
  • accommodable
  • accompanable
  • accompletive
  • accomplished
  • accumulative
  • accusatorial
  • accustomable
  • achlamydeous
  • acquaintable
  • acroamatical
  • acrocephalic
  • actinometric
  • acutifoliate
  • adambulacral
  • adelocodonic
  • adenographic
  • adenological
  • adenophorous
  • adjudicative
  • adminiculary
  • administrant
  • admonitorial
  • adscititious
  • advantageous
  • adventitious
  • adventureful
  • adversarious
  • aeronautical
  • aerostatical
  • aetheogamous

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12 letter adjectives that start with b

  • bacchanalian
  • back-to-back
  • bactericidal
  • bad-tempered
  • balaniferous
  • barbellulate
  • barometrical
  • baroscopical
  • basisphenoid
  • battlemented
  • belletristic
  • beneficeless
  • bequeathable
  • biarticulate
  • biauriculate
  • bibliomaniac
  • bibliothecal
  • bicarbureted
  • bicentennial
  • bicrescentic
  • biflabellate
  • biflagellate
  • bilamellated
  • binucleolate
  • biographical
  • bipectinated
  • bipinnatifid
  • blackguardly
  • blastodermic
  • blastophoral
  • blastophoric
  • blennogenous
  • bloodthirsty
  • blow-by-blow
  • bog-standard
  • bottleholder
  • brachytypous
  • breastheight
  • breechloader
  • brevipennate

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12 letter adjectives that start with c

  • cabalistical
  • cachinnatory
  • cacochymical
  • cacophonical
  • cacophonious
  • calamiferous
  • calcographic
  • calligraphic
  • calorimetric
  • calumniatory
  • calycifloral
  • calyptriform
  • camberkeeled
  • cameralistic
  • canaliculate
  • cancellarean
  • cantankerous
  • capillaceous
  • carbonaceous
  • carlovingian
  • carpological
  • carpophagous
  • carriageable
  • carthaginian
  • cartographic
  • carunculated
  • casehardened
  • cash-starved
  • catachrestic
  • catadioptric
  • catapetalous
  • cataphracted
  • cataphractic
  • cataphysical
  • catastrophic
  • catechetical
  • catilinarian
  • caulocarpous
  • centifolious
  • centrolineal

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12 letter adjectives that start with d

  • deambulatory
  • decaphyllous
  • decasyllabic
  • decemdentate
  • decemlocular
  • decipherable
  • declensional
  • decomposable
  • decreaseless
  • dedicatorial
  • definitional
  • degenerative
  • deglutitious
  • deliberative
  • deliquescent
  • dellacruscan
  • demissionary
  • democratical
  • demonstrable
  • dendrologous
  • denominative
  • denticulated
  • dentilingual
  • dentirostral
  • dentolingual
  • denunciative
  • denunciatory
  • deoperculate
  • deoppilative
  • departmental
  • depreciative
  • depreciatory
  • derivational
  • descensional
  • desiderative
  • desquamative
  • desquamatory
  • destructible
  • desultorious
  • deuterogenic

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12 letter adjectives that start with e

  • ebracteolate
  • ecclesiastes
  • echinodermal
  • ectolecithal
  • edulcorative
  • effervescent
  • effervescive
  • elasmobranch
  • electrogenic
  • electrograph
  • electrolytic
  • electrometer
  • electromotor
  • electrotonic
  • electrotypic
  • eleemosynary
  • elementalism
  • elextrometry
  • elocutionary
  • emancipatory
  • emasculatory
  • embarrassing
  • emblematical
  • embolismatic
  • embolismical
  • embryoniform
  • emigrational
  • empassionate
  • empty-handed
  • empty-headed
  • empyreumatic
  • encrinitical
  • encyclopedic
  • endamageable
  • endecagynous
  • endochondral
  • endophragmal
  • endophyllous
  • endoskeletal
  • enharmonical

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12 letter adjectives that start with f

  • face-to-face
  • fact-finding
  • fainthearted
  • familistical
  • far-reaching
  • farstretched
  • fasciculated
  • febrifacient
  • feldspathose
  • fermentative
  • ferriprussic
  • ferroprussic
  • ferruginated
  • ferrugineous
  • findfaulting
  • first-degree
  • first-string
  • fissilingual
  • fissipalmate
  • fissirostral
  • fistularioid
  • flabelliform
  • flagelliform
  • flammiferous
  • flammivomous
  • flat-chested
  • flexicostate
  • floor-length
  • fluctiferous
  • fluctisonous
  • folliculated
  • forepromised
  • foresightful
  • foul-mouthed
  • fountainless
  • fourfeitable
  • freethinking
  • freeze-dried
  • frequentable
  • frictionless

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12 letter adjectives that start with g

  • gallinaceous
  • gamopetalous
  • gamophyllous
  • gamosepalous
  • gasometrical
  • gastropodous
  • gastroscopic
  • gelatiniform
  • gemmiflorate
  • genealogical
  • generational
  • genethliacal
  • genitocrural
  • gentilitious
  • geocentrical
  • geodephagous
  • geognostical
  • geographical
  • geraniaceous
  • ginglymoidal
  • gladiatorial
  • gladiatorian
  • glandiferous
  • glaucomatous
  • gnomological
  • good-hearted
  • good-looking
  • governmental
  • grallatorial
  • graminaceous
  • graphitoidal
  • green-collar
  • guardianless
  • guilt-ridden
  • gymnoblastic
  • gymnocarpous
  • gynantherous

12 letter adjectives that start with h

  • habilimented
  • haemapoietic
  • haematocryal
  • haematogenic
  • haemoplastic
  • hair-raising
  • hair-trigger
  • hallelujatic
  • hand-to-hand
  • happy-clappy
  • hard-hearted
  • hard-hitting
  • hard-wearing
  • hare-brained
  • heartburning
  • heartrending
  • heat-seeking
  • hebdomatical
  • hederiferous
  • heliocentric
  • heliochromic
  • heliographic
  • hemastatical
  • hemimellitic
  • hemorrhoidal
  • hepatocystic
  • hepatogenous
  • heroicomical
  • herpetologic
  • heterocercal
  • heteroclitic
  • heterodactyl
  • heterogamous
  • heterogeneal
  • heterogenous
  • heterogonous
  • heterogynous
  • heterologous
  • heteromerous
  • heteronomous

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12 letter adjectives that start with i

  • ichnographic
  • ichnological
  • ichthyologic
  • iconoclastic
  • iconographic
  • identifiable
  • idiocratical
  • idioelectric
  • idiomorphous
  • idiomuscular
  • idiopathetic
  • idiopathical
  • illacrymable
  • ill-assorted
  • ill-disposed
  • illegitimate
  • ill-equipped
  • illiterature
  • ill-mannered
  • ill-prepared
  • ill-tempered
  • illuminating
  • illuminative
  • illuministic
  • illusionable
  • illustrative
  • illustratory
  • immeasurable
  • immechanical
  • immensurable
  • immethodical
  • immorigerous
  • imparalleled
  • impardonable
  • impassionate
  • impedimental
  • impenetrable
  • imperatorial
  • imperatorian
  • imperceptive

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12 letter adjectives that start with j

  • jeffersonian
  • jointureless
  • journalistic
  • jurisdiction
  • jurisdictive
  • jurisprudent
  • just-in-time

12 letter adjectives that start with k

  • karyokinetic
  • keratogenous
  • kind-hearted
  • kyriological

12 letter adjectives that start with l

  • labyrinthian
  • labyrinthine
  • lachrymiform
  • laminiferous
  • languageless
  • largiloquent
  • laticiferous
  • latirostrous
  • latitudinous
  • laughterless
  • leiotrichous
  • lenticellate
  • lepidopteral
  • leptocardian
  • level-headed
  • levorotatory
  • liberalistic
  • ligniperdous
  • lily-livered
  • limp-wristed
  • linearensate
  • linguadental
  • linguidental
  • linguistical
  • lion-hearted
  • lip-smacking
  • lithoglyphic
  • lithographic
  • lithological
  • lithophagous
  • lithophytous
  • lithotomical
  • lithotriptic
  • lobeliaceous
  • loggerheaded
  • lomentaceous
  • longilateral
  • longipennate
  • longipennine
  • longirostral

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12 letter adjectives that start with m

  • machiavelian
  • machicolated
  • machine-made
  • macrognathic
  • macropterous
  • magnetizable
  • magniloquent
  • magniloquous
  • mainpernable
  • maintainable
  • major-league
  • malcontented
  • malepractice
  • mammalogical
  • mammilliform
  • mandibulated
  • manganesious
  • manifestable
  • manifestible
  • manipulative
  • manipulatory
  • manoeuvrable
  • manometrical
  • manufactural
  • manuscriptal
  • marcasitical
  • marginicidal
  • marmoraceous
  • marriageable
  • martyrologic
  • mathematical
  • matrimonious
  • medicamental
  • medium-dated
  • medium-sized
  • megacephalic
  • melanochroic
  • melanocomous
  • melliloquent
  • melliphagous

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12 letter adjectives that start with n

  • naphthalenic
  • nasopalatine
  • nasoturbinal
  • natural-born
  • naturalistic
  • necrological
  • necrophagous
  • need-to-know
  • nephrolithic
  • neurochordal
  • neurological
  • neuropterous
  • neurotomical
  • never-ending
  • newfashioned
  • nice-looking
  • nitroprussic
  • nominalistic
  • nomothetical
  • noncomplying
  • nondeciduate
  • noneffective
  • nonessential
  • nonextensile
  • nonimporting
  • nonmalignant
  • nonnucleated
  • nonoxygenous
  • non-partisan
  • nonrecurrent
  • nonrecurring
  • nonresistant
  • nonresisting
  • nonsensitive
  • non-specific
  • northeastern
  • northernmost
  • northumbrian
  • northwestern
  • nucleobranch

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12 letter adjectives that start with o

  • obcompressed
  • oblanceolate
  • obliterative
  • obreptitious
  • obstreperous
  • obtusangular
  • occasionable
  • occupational
  • ochroleucous
  • octopetalous
  • octoradiated
  • octospermous
  • octostichous
  • octosyllabic
  • octosyllable
  • oenanthylous
  • off-the-cuff
  • off-the-wall
  • oligarchical
  • omnispective
  • onagrarieous
  • oneirocritic
  • onomatopoeic
  • operculiform
  • ophiological
  • ophiophagous
  • opiniastrous
  • opinionative
  • orchidaceous
  • organoleptic
  • orichalceous
  • ornithologic
  • orographical
  • orthoclastic
  • orthodoxical
  • orthognathic
  • orthographic
  • orthomorphic
  • orthopedical
  • orthopterous

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12 letter adjectives that start with p

  • pachycarpous
  • pachydermoid
  • pachyglossal
  • pacificatory
  • paedogenetic
  • paleocrystic
  • paleographic
  • paleotechnic
  • paleotherian
  • palingenetic
  • palmatilobed
  • pandiculated
  • pan-european
  • panslavonian
  • pantamorphic
  • pantographic
  • pantological
  • pantomimical
  • pantophagous
  • paraboliform
  • paraboloidal
  • paradigmatic
  • paradisaical
  • paradisiacal
  • paragnathous
  • parallelable
  • parallelless
  • paramagnetic
  • paramorphous
  • parapetalous
  • paraphrastic
  • parasphenoid
  • parenchymous
  • parisyllabic
  • parjdigitate
  • parliamental
  • paroccipital
  • paronomastic
  • parricidious
  • parsimonious

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12 letter adjectives that start with q

  • quadrangular
  • quadriennial
  • quadrijugate
  • quadrijugous
  • quadrilobate
  • quadrivalent
  • quadrumanous
  • quantitative
  • quantivalent
  • quaquaversal
  • quercitannic
  • querulential
  • questionable
  • questionless
  • quick-witted
  • quidditative
  • quinquelobed
  • quinquennial
  • quinquevalve
  • quote-driven

12 letter adjectives that start with r

  • racemiferous
  • raffaelesque
  • ramentaceous
  • raphaelesque
  • recalcitrant
  • receptacular
  • recognizable
  • recollective
  • recompensive
  • reconcilable
  • recrudescent
  • rectilineous
  • rectirostral
  • rectovaginal
  • recuperative
  • recuperatory
  • redintegrate
  • reexaminable
  • regenerative
  • regeneratory
  • reglementary
  • reimbursable
  • reinfectious
  • rejectaneous
  • rejectitious
  • religionless
  • rememberable
  • rememorative
  • remunerative
  • remuneratory
  • renunciatory
  • reobtainable
  • repercussive
  • repertitious
  • repetitional
  • replevisable
  • reprehensive
  • reprehensory
  • representant
  • reproachablr

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12 letter adjectives that start with s

  • saccharoidal
  • saccholactic
  • sacramentary
  • sacrificable
  • sacrilegious
  • sacrosciatic
  • salamandrine
  • salamandroid
  • saliniferous
  • saltatorious
  • salutiferous
  • sanctimonial
  • sanguiferous
  • sanguifluous
  • sanguigenous
  • sanguineless
  • sanguinolent
  • sanguivorous
  • santalaceous
  • sapindaceous
  • saponifiable
  • saprophagous
  • sarcological
  • sarcophagous
  • satellitious
  • satisfactive
  • satisfactory
  • scandinavian
  • scenographic
  • schismatical
  • schistaceous
  • schizopodous
  • schneiderian
  • scholastical
  • schorlaceous
  • sciatherical
  • scientifical
  • scissorstail
  • scitamineous
  • sclerogenous

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12 letter adjectives that start with t

  • tabernacular
  • tachygraphic
  • tagliacotain
  • talismanical
  • tamper-proof
  • tarantulated
  • tardigradous
  • tauricornous
  • tauromachian
  • tautegorical
  • tautological
  • tautoousious
  • teleological
  • telescopical
  • telesmatical
  • tellurhydric
  • telotrochous
  • temporaneous
  • temporomalar
  • tentaculated
  • tenuifolious
  • tenuirostral
  • tercentenary
  • terebinthine
  • terephthalic
  • terrestrious
  • testamentary
  • testudinated
  • testudineous
  • tetracoccous
  • tetradactyle
  • tetrapterous
  • tetrarchical
  • tetrathionic
  • thaumaturgic
  • theanthropic
  • thecasporous
  • theochristic
  • theocratical
  • theopathetic

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12 letter adjectives that start with u

  • ultramundane
  • unabsorbable
  • unacceptable
  • unaccessible
  • unaccustomed
  • unacquainted
  • unadmissible
  • unadmittable
  • unadulterate
  • unanswerable
  • unappealable
  • unapplicable
  • unauspicious
  • unauthorized
  • unbelievable
  • uncharitable
  • unchristened
  • uncleansable
  • uncomeatable
  • unconcerning
  • unconcludent
  • unconcluding
  • unconclusive
  • unconfounded
  • unconsidered
  • unconsummate
  • uncontrolled
  • unconvenient
  • uncorrigible
  • uncovenanted
  • uncreditable
  • uncustomable
  • undefeasible
  • undepartable
  • undercurrent
  • underdressed
  • undermoneyed
  • underpeopled
  • under-served
  • undersparred

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12 letter adjectives that start with v

  • vainglorious
  • valetudinary
  • valetudinous
  • vanquishable
  • vaporiferous
  • vehiculatory
  • ventriculous
  • verbenaceous
  • verecundious
  • verificative
  • vermiculated
  • versicolored
  • verticillate
  • vibratiuncle
  • vigesimation
  • visitatorial
  • viticultural
  • vitrificable
  • vituperative
  • vituperrious
  • vivificative
  • volumetrical
  • vulvovaginal

12 letter adjectives that start with w

  • wall-to-wall
  • waterishness
  • weatherproof
  • well-advised
  • well-behaved
  • well-defined
  • well-drained
  • well-endowed
  • well-founded
  • well-groomed
  • well-meaning
  • well-rounded
  • well-thumbed
  • whistle-stop
  • white-collar
  • wide-ranging
  • wonderstruck
  • world-famous
  • worldly-wise

12 letter adjectives that start with x

  • xanthochroic
  • xanthochroid
  • xanthomatous
  • xiphisternal

12 letter adjectives that start with y

  • yezdegerdian

12 letter adjectives that start with z

  • zalambdodont
  • zarathustric
  • zoographical
  • zygodactylic
  • zygomorphous