430+ Outstanding Adjectives that Start with O

This list contains more than 400 adjectives that start with O. So if you need some O adjectives in your life, look no further than this list. You are certain to find some nice adjectives that start with O here.

Adjectives that Start with O

Adjectives that Start with O

This is a long list of descriptive words that start with O. It is full of good adjectives that start with O to incorporate into your day-to-day life.

  • Obdurate
  • Obedient
  • Obese
  • Objective
  • Oblate
  • Obligate
  • Obligated
  • Obligatory
  • Obliged
  • Oblique
  • Oblivious
  • Oblong
  • Obnoxious
  • Obscene
  • Obscure
  • Observable
  • Observant
  • Observed
  • Observing
  • Obsessed
  • Obsessional
  • Obsessive
  • Obsolescent
  • Obsolete
  • Obstetric
  • Obstetrical
  • Obstinate
  • Obstructed
  • Obstructive
  • Obtainable
  • Obtrusive
  • Obtuse
  • Obviating
  • Obvious
  • Occasional
  • Occidental
  • Occipital
  • Occlusive
  • Occult
  • Occupational
  • Occupied
  • Occurrent
  • Oceanic
  • Ocellated
  • Ocher
  • Ochre
  • Octagonal
  • Octal
  • Octangular
  • Octuple
  • Ocular
  • Odd
  • Oddish
  • Odious
  • Odorless
  • Odorous
  • Off
  • Offbeat
  • Offenceless
  • Offended
  • Offending
  • Offenseless
  • Offensive
  • Offhand
  • Official
  • Officious
  • Offish
  • Offshore
  • Offside
  • Offsides
  • Offstage
  • Old
  • Olden
  • Older
  • Oldish
  • Oldline
  • Oleaceous
  • Oleaginous
  • Olfactive
  • Olfactory
  • Olive
  • Olivelike
  • Olympian
  • Ominous
  • Omissible
  • Omissive
  • Omnibus
  • Omnipresent
  • Omniscient
  • Oncologic
  • Oncoming
  • One
  • Oneiric
  • Onerous
  • Onetime
  • Ongoing
  • Online
  • Only
  • Onomastic
  • Onshore
  • Onside
  • Onstage
  • Ontogenetic
  • Ontological
  • Onymous
  • Opalescent
  • Opaline
  • Opaque
  • Open
  • Opencast
  • Opencut
  • Opened
  • Openhanded
  • Openhearted
  • Opening
  • Operable
  • Operant
  • Operatic
  • Operating
  • Operational
  • Operationalist
  • Operative
  • Operculate
  • Operculated
  • Operose
  • Ophthalmic
  • Opinionated
  • Opponent
  • Opportune
  • Opportunist
  • Opposable
  • Opposed
  • Opposing
  • Opposite
  • Oppositive
  • Oppressed
  • Oppressive
  • Opprobrious
  • Optative
  • Optic
  • Optical
  • Optimal
  • Optimistic
  • Optimum
  • Optional
  • Opulent
  • Oracular
  • Oral
  • Orange
  • Orangish
  • Oratorical
  • Orbicular
  • Orbiculate
  • Orbital
  • Orbitual
  • Orchestral
  • Orchestrated
  • Ordained
  • Ordered
  • Orderly
  • Ordinal
  • Ordinary
  • Organic
  • Organised
  • Organismal
  • Organismic
  • Organized
  • Orgiastic
  • Oriental
  • Orientated
  • Orientating
  • Oriented
  • Orienting
  • Original
  • Originative
  • Ornamental
  • Ornate
  • Ornery
  • Orotund
  • Orphaned
  • Orphic
  • Orthodontic
  • Orthodox
  • Orthogonal
  • Orthographic
  • Orthopaedic
  • Orthoptic
  • Orthostatic
  • Orwellian
  • Oscillating
  • Oscillatory
  • Oscine
  • Oscitant
  • Osmotic
  • Osseous
  • Ossicular
  • Ossiculate
  • Ossiferous
  • Ossified
  • Osteal
  • Ostensible
  • Ostensive
  • Ostentatious
  • Other
  • Otherwise
  • Otherworldly
  • Ototoxic
  • Ottoman
  • Outback
  • Outboard
  • Outbound
  • Outbred
  • Outcast
  • Outclassed
  • Outdated
  • Outdoor
  • Outdoorsy
  • Outer
  • Outermost
  • Outfitted
  • Outflowing
  • Outgoing
  • Outlandish
  • Outlaw
  • Outlined
  • Outmoded
  • Outmost
  • Outrageous
  • Outre
  • Outright
  • Outside
  • Outsize
  • Outsized
  • Outspoken
  • Outspread
  • Outstanding
  • Outward
  • Oval
  • Ovarian
  • Ovate
  • Over
  • Overactive
  • Overage
  • Overaged
  • Overall
  • Overarm
  • Overawed
  • Overbearing
  • Overblown
  • Overbold
  • Overbusy
  • Overcareful
  • Overcast
  • Overcautious
  • Overconfident
  • Overcritical
  • Overcurious
  • Overdelicate
  • Overdone
  • Overdressed
  • Overdue
  • Overeager
  • Overemotional
  • Overexcited
  • Overfamiliar
  • Overflowing
  • Overfond
  • Overfull
  • Overgenerous
  • Overgreedy
  • Overgrown
  • Overhand
  • Overhanded
  • Overhasty
  • Overhead
  • Overheated
  • Overjealous
  • Overjoyed
  • Overladen
  • Overland
  • Overlarge
  • Overloaded
  • Overlooked
  • Overlying
  • Overmodest
  • Overmuch
  • Overnice
  • Overnight
  • Overpowering
  • Overpriced
  • Overprotective
  • Overproud
  • Overreaching
  • Overrefined
  • Overriding
  • Overripe
  • Oversea
  • Overseas
  • Oversensitive
  • Overserious
  • Oversewn
  • Oversexed
  • Overshot
  • Oversize
  • Overstated
  • Overstuffed
  • Oversubscribed
  • Oversuspicious
  • Overt
  • Overturned
  • Overvaliant
  • Overweight
  • Overwhelming
  • Overzealous
  • Ovoid
  • Ovular
  • Owlish
  • Owned
  • Ownerless
  • Oxalic
  • Oxidative

Positive Adjectives that Start with O

Here are some positive adjectives that start with O. You can also find some good adjectives that start with O to describe a person positively here.

  • Objective
  • Obliging
  • Obtainable
  • Omniscient
  • Open-Minded
  • Openhanded
  • Openhearted
  • Opportune
  • Optimal
  • Optimistic
  • Optional
  • Opulent
  • Organic
  • Original
  • Ornamental
  • Ornate
  • Outgoing
  • Outstanding
  • Overjoyed

Negative Adjectives that Start with O

Here are some negative adjectives that start with O. They are great to use in context, though some of them can have more positive connotations in different contexts.

  • Obdurate
  • Obese
  • Objectionable
  • Obligated
  • Obligational
  • Obligatory
  • Obliterable
  • Obsessive
  • Obsolete
  • Obstinate
  • Obstreperous
  • Obstructed
  • Obstructive
  • Obtrusive
  • Obtuse
  • Obvious
  • Occluded
  • Occult
  • Occupied
  • Odd
  • Odious
  • Offensive
  • Oily
  • Old
  • Oldest
  • Omissible
  • Omissive
  • Only
  • Oozy
  • Opponent
  • Opportunist
  • Opportunistic
  • Opposite
  • Oppressive
  • Outcast
  • Outclassed
  • Outdated
  • Outlaw
  • Outlawed
  • Outmoded
  • Outraged
  • Outrageous
  • Overactive
  • Overaged
  • Overaged
  • Overbearing
  • Overburdened
  • Owing

Adjectives that Start with O to Describe a Person

Here are some more adjectives that start with the letter O that you can use to describe a person. They run the gamut of connotations.

  • Objectionable
  • Obscene
  • Odd
  • Odious
  • Offensive
  • Ok
  • Okay
  • Old
  • Older
  • Oldish
  • Open
  • Openhanded
  • Orderly
  • Ordinary
  • Outcast
  • Outclassed
  • Outdated
  • Outdoorsy
  • Outgoing
  • Outlandish
  • Outlaw
  • Outmoded
  • Outrageous
  • Outright
  • Outspoken
  • Outspread
  • Outstanding
  • Overachiever
  • Overbooked
  • Overburdened
  • Overcharged
  • Overcoached
  • Overcommitted
  • Overcounted
  • Overdeveloped
  • Overdosed
  • Overdressed
  • Overeducated
  • Overexerted
  • Overexerting
  • Overexposed
  • Overextended
  • Overfatigued
  • Overfed
  • Overfulfilled
  • Overinformed
  • Overnighter
  • Oversteered
  • Overweight
  • Overwhelming

FAQs

What are the most common adjectives that start with O?

Some of the most common adjectives starting with O include: obedient, obnoxious, odd, old-fashioned, open, outrageous, and outstanding. There are lots of O adjectives, so it makes sense that there are so many common ones.

What are the least common adjectives that start with O?

Some of the least common adjectives that start with O include: obdurate, opulent, ovate, and odious. O words get used a lot, and it can be easy to infer what they mean because they are compound words.

What are some personality adjectives that start with O?

Some personality adjectives that start with O include: obedient, open-minded, obstinate, and odd. They can be used in many different situations to describe people’s personalities.

Conclusion

Now you know many more adjectives that start with O. This list is very long but also fairly comprehensive in the O adjectives you will come across.

Facebook
Twitter
LinkedIn
Pinterest

Table of Contents

Related posts