11 letter adjectives that start with O

We have listed 115 11-letter adjectives that start with O for you in this WordMom word list. All these 11-letter adjectives starting with O were verified by specialists in the English language.

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  • obsolescent
  • obstetrical
  • obstructive
  • obliterated
  • obsessional
  • obsignatory
  • obliterable
  • obediential
  • observative
  • objurgatory
  • obsecratory
  • obimbricate
  • ochlocratic
  • octonocular
  • octodentate
  • octolocular
  • octoedrical
  • odoriferous
  • odometrical
  • oecumenical
  • oesophageal
  • oenanthylic
  • oeconomical
  • oenothionic
  • offenseless
  • offenceless
  • oligomerous
  • oligotokous
  • oligandrous
  • oliganthous
  • omnipresent
  • omnifarious
  • omnipatient
  • omniparient
  • ontological
  • ontogenetic
  • oncological
  • onagraceous
  • onirocritic
  • onomantical
  • operational
  • opinionated
  • opportunist
  • opprobrious
  • openhearted
  • operculated
  • openmouthed
  • opinionable
  • opertaneous
  • orientating
  • orthopaedic
  • orthodontic
  • originative
  • orthostatic
  • orbiculated
  • orthoscopic
  • organizable
  • orthotropic
  • orthodromic
  • orthoepical
  • oreographic
  • orthometric
  • orbitonasal
  • orthotomous
  • organogenic
  • orthotropal
  • orangetawny
  • oscillating
  • oscillatory
  • oscillative
  • ostreaceous
  • ossiculated
  • ostrogothic
  • ossifragous
  • ostriferous
  • outstanding
  • overflowing
  • overexcited
  • overanxious
  • overweening
  • overcareful
  • overbearing
  • overwrought
  • overdressed
  • overzealous
  • overlooking
  • overrefined
  • overstuffed
  • overserious
  • overcharged
  • overjealous
  • overcurious
  • overvaliant
  • overforward
  • ovuliferous
  • overtedious
  • overlearned
  • overearnest
  • overgrassed
  • oversubtile
  • overbookish
  • overelegant
  • overpatient
  • overscented
  • overknowing
  • overcapable
  • overcarking
  • overliberal
  • overcunning
  • overlogical
  • overshadowy
  • oxyhydrogen
  • oxymuriatic
  • ozonoscopic
  • ozonometric

11 letter adjectives that start with