Adjectives that start with O

Are you looking for adjectives that start with o (o adjectives)? Then, the following list of over over 885 adjectives is for you. All these adjectives starting with o 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 adjectives that start with o, you can make your language skills interesting and vibrant.

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Adjectives that start with o

  • o

Adjectives that start with oa

  • oafish
  • oaken
  • oared
  • oarfoot
  • oarless
  • oary
  • oat
  • oaten
  • oathable

Adjectives that start with ob

  • obcompressed
  • obconic
  • obconical
  • obcordate
  • obdiplostemonous
  • obdurate
  • obdure
  • obdured
  • obeah
  • obedible
  • obedient
  • obediential
  • obeisant
  • obeliscal
  • obese
  • obfuscate
  • obimbricate
  • obitual
  • obiyuary
  • object
  • objectable
  • objectionable
  • objective
  • objectless
  • object-oriented
  • objurgatory
  • oblanceolate
  • oblate
  • obligable
  • obligated
  • obligato
  • obligatory
  • obliging
  • oblique
  • oblite
  • obliterate
  • obliterative
  • oblivious
  • oblong
  • oblongatal

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Adjectives that start with oc

  • occasionable
  • occasional
  • occasive
  • occidental
  • occiduous
  • occipital
  • occipitoaxial
  • occludent
  • occluse
  • occult
  • occulted
  • occupational
  • occupied
  • occurrent
  • ocean
  • oceanic
  • ocellary
  • ocellate
  • ocellated
  • oceloid
  • ocherous
  • ochery
  • ochlocratic
  • ochlocratical
  • ochraceous
  • ochreate
  • ochreated
  • ochreous
  • ochrey
  • ochroleucous
  • ochry
  • ocreate
  • ocreated
  • octaedral
  • octagonal
  • octagynous
  • octahedral
  • octamerous
  • octandrian
  • octandrous

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Adjectives that start with od

  • odd
  • odds
  • odds-on
  • odible
  • odic
  • odinic
  • odious
  • odometrical
  • odometrous
  • odontalgic
  • odontographic
  • odontoid
  • odontophorous
  • odontostomatous
  • odorant
  • odorate
  • odorating
  • odoriferous
  • odorless
  • odorous
  • odylic

Adjectives that start with oe

  • oeconomical
  • oecumenical
  • oedematous
  • oenanthic
  • oenanthylic
  • oenanthylous
  • oenothionic
  • oesophageal
  • oesophagus
  • oestrian
  • oestrual

Adjectives that start with of

  • off
  • off-duty
  • offended
  • offending
  • offenseful
  • offenseless
  • offensible
  • offensive
  • offerable
  • offhand
  • official
  • officiary
  • officinal
  • officious
  • offish
  • off-key
  • off-peak
  • off-piste
  • off-putting
  • offset
  • offshore
  • off-the-books
  • off-the-cuff
  • off-the-peg
  • off-the-record
  • off-the-wall
  • oft
  • often

Adjectives that start with og

  • ogreish
  • ogygian

Adjectives that start with oi

  • oil-bearing
  • oiled
  • oil-fired
  • oil-free
  • oil-rich
  • oily

Adjectives that start with ol

  • old
  • olde
  • olden
  • old-established
  • old-fashioned
  • oldish
  • oldster
  • old-style
  • oleaceous
  • oleaginous
  • olecranal
  • olefiant
  • oleic
  • oleiferous
  • olent
  • oleose
  • oleous
  • oleraceous
  • olfactive
  • olfactory
  • olid
  • olidous
  • oligandrous
  • oliganthous
  • oligarchal
  • oligarchic
  • oligarchical
  • oligist
  • oligistic
  • oligocene
  • oligochete
  • oligomerous
  • oligomyold
  • oligopetalous
  • oligosepalous
  • oligospermous
  • oligotokous
  • olitory
  • olivaceous
  • olivary

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Adjectives that start with om

  • omegoid
  • omened
  • omental
  • omiletical
  • ominous
  • omissible
  • omissive
  • ommateal
  • omnicorporeal
  • omnifarious
  • omniferous
  • omnific
  • omniform
  • omnigenous
  • omniparient
  • omniparous
  • omnipatient
  • omnipercipient
  • omnipotent
  • omnipresent
  • omnipresential
  • omniprevalent
  • omniscient
  • omniscious
  • omnispective
  • omnivagant
  • omnivorous
  • omohyoid
  • omophagic
  • omosternal
  • omphacine
  • omphalic
  • omphalomesaraic
  • omphalomesenteric
  • omy

Adjectives that start with on

  • onagraceous
  • onagrarieous
  • one
  • oneberry
  • one-dimensional
  • oneirocritic
  • oneirocritical
  • onely
  • one-on-one
  • one-piece
  • onerary
  • onerous
  • oneself
  • one-shot
  • one-star
  • one-time-only
  • one-to-one
  • one-way
  • one-woman
  • onirocritic
  • onloft
  • only
  • onomantic
  • onomantical
  • onomastic
  • onomatopoeic
  • onomatopoetic
  • ontogenetic
  • ontogenic
  • ontologic
  • ontological
  • onward
  • ony

Adjectives that start with oo

  • oo
  • ooidal
  • oolitic
  • oological
  • oon
  • oophoric
  • oophytic
  • oosporic
  • oozy

Adjectives that start with op

  • opacous
  • opacular
  • opake
  • opalescent
  • opaline
  • opaque
  • oparcular
  • ope
  • op-ed
  • open
  • open-end
  • open-ended
  • opener
  • opening
  • openly
  • open-necked
  • open-plan
  • openwork
  • operable
  • operant
  • operatic
  • operatical
  • operational
  • operative
  • operculate
  • operculated
  • operculiferous
  • operculiform
  • operculigenous
  • operose
  • operous
  • opertaneous
  • ophelic
  • ophidian
  • ophidioid
  • ophidious
  • ophiologic
  • ophiological
  • ophiomorphous
  • ophiophagous

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Adjectives that start with or

  • oracular
  • oraculous
  • oragious
  • oral
  • orange
  • orangetawny
  • orarian
  • oratorial
  • oratorian
  • oratorical
  • oratorious
  • orbate
  • orbed
  • orbic
  • orbical
  • orbicular
  • orbiculate
  • orbiculated
  • orbital
  • orbitar
  • orbitary
  • orbitonasal
  • orbitosphenoid
  • orbitosphenoidal
  • orbituary
  • orby
  • orcadian
  • orchestral
  • orchestric
  • orchidaceous
  • orchidean
  • orchideous
  • ordainable
  • ordalian
  • ordeal
  • orderable
  • ordered
  • orderless
  • orderly
  • ordinable

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Adjectives that start with os

  • oscan
  • oscillating
  • oscillative
  • oscillatory
  • oscine
  • oscinine
  • oscitant
  • osculant
  • osculatory
  • osier
  • osiered
  • osmiamic
  • osmic
  • osmious
  • osmotic
  • osseous
  • ossianic
  • ossiculated
  • ossiferous
  • ossific
  • ossified
  • ossifragous
  • ossifying
  • ossivorous
  • osteal
  • ostensible
  • ostensive
  • ostentatious
  • ostentive
  • ostentous
  • osteogenetic
  • osteogenic
  • osteoid
  • osteologic
  • osteological
  • osteoplastic
  • osteopterygious
  • ostic
  • ostracoid
  • ostreaceous

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Adjectives that start with ot

  • otacoustic
  • otalgic
  • other
  • otherguess
  • otherguise
  • othman
  • otic
  • otiose
  • otocranial
  • otolithic
  • otolitic
  • otological
  • otoscopeic
  • ottoman

Adjectives that start with ou

  • oughne
  • ounded
  • oundy
  • ouphen
  • ouretic
  • out
  • out-and-out
  • outblown
  • outboard
  • outborn
  • outbound
  • outbowed
  • outcast
  • outdated
  • outdoor
  • outer
  • outermost
  • outgoing
  • outland
  • outlandish
  • outlinear
  • outlying
  • outmost
  • outnumber
  • out-of-the-way
  • outrageous
  • outre
  • outside
  • outspoken
  • outspread
  • outstanding
  • outward

Adjectives that start with ov

  • oval
  • ovaliform
  • ovant
  • ovarial
  • ovarian
  • ovarious
  • ovate
  • ovated
  • ovation
  • oven-ready
  • over
  • overactive
  • over-age
  • overall
  • overanxious
  • overarch
  • overawful
  • overbarren
  • overbattle
  • overbearing
  • overbold
  • overbookish
  • overbounteous
  • overbuilt
  • overburdensome
  • overburn
  • overcapable
  • overcareful
  • overcarking
  • overcast
  • overcautious
  • overcharged
  • overcold
  • overcoming
  • overconfident
  • overcostly
  • overcredulous
  • overcunning
  • overcurious
  • overdelicate

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Adjectives that start with ow

  • owel
  • owen
  • owing
  • owlet
  • owlish
  • own
  • ownerless
  • owner-occupied
  • own-label

Adjectives that start with ox

  • oxalic
  • oxaluric
  • oxamic
  • oxanilic
  • oxeyed
  • oxford
  • oxidable
  • oxidizable
  • oxidulated
  • oxiodic
  • oxlike
  • oxonian
  • oxonic
  • oxyacetic
  • oxybenzoic
  • oxybromic
  • oxybutyric
  • oxycalcium
  • oxycaproic
  • oxychloric
  • oxygenic
  • oxygenizable
  • oxygenous
  • oxygonal
  • oxygonial
  • oxyhydrogen
  • oxymuriatic
  • oxyntic
  • oxyphenic
  • oxytocic
  • oxytone
  • oxytonical

Adjectives that start with oz

  • ozone-friendly
  • ozonic
  • ozonometric
  • ozonoscopic
  • ozonous