188 Positive Adjectives that Start with O in English

What are positive adjectives that start with O? If you’re looking to start using more positive language in your everyday conversations, then you’ll want to know about some of the most positive adjectives that start with the letter “o.” After all, words can have a lasting impact on our outlooks and actions.

So knowing which words to use can go a long way toward improving your interactions with other people as well as helping you feel more optimistic and self-assured every day. In this blog post, you’ll learn about some of the most positive adjectives that start with the letter “o” and why they’re particularly useful if you’re working on becoming a more optimistic person.

Positive Adjectives that Start with O

What are Positive Adjectives?

Positive adjectives describe something (or someone) as good or nice. A positive adjective has a positive impact on the person(s) it’s used to describe. Positive adjectives are meant to increase someone’s mood, and they should be used at all times instead of other negative words. These words may seem simple enough, but they can profoundly affect your outlook and actions when used correctly.

List of Positive Adjectives that Start with O

  • Ornamental
  • Obcordate
  • Origination
  • Onward
  • Opulent
  • Outstrip
  • Originator
  • Over-joyful
  • Observable
  • On-hand
  • Offering
  • Overpower
  • Overbold
  • On-the-button
  • Outperformed
  • Outthink
  • Outplay
  • Odds-on
  • Overflowing
  • On-target
  • Openly
  • Optimum
  • Opportune
  • Outdrive
  • Operatic
  • Ovation
  • Over
  • Onwards
  • Obedient
  • Omnipotent
  • Omniscient
  • Overcome
  • Obviousness
  • Oomph
  • Oozing
  • Oily
  • Originality
  • Overtake
  • On-the-ball
  • Overwhelming
  • Outshone
  • Open-handed
  • Originate
  • Overactive
  • Outwit
  • Orchestrated
  • Oil-bearing
  • Outbrave
  • Outstretch
  • Overtaking
  • Overcautious
  • Obligingly
  • Outperform
  • Orchestrator
  • Overexcited
  • Overriding
  • Opalescent
  • Over-achiever
  • Obliged
  • Organic
  • Orgasmic
  • Optimistic
  • Ooze
  • Oecumenical
  • Occur
  • Odd
  • Original
  • Oodles
  • Overachiever
  • Obliging
  • Obey
  • Outright
  • Operable
  • Overflow
  • Outrace
  • Outrageous
  • Openness
  • Observance
  • Outrank
  • Optimist
  • Outstandingly
  • Overall
  • Official
  • Overjoyed
  • Onset
  • OK
  • Oriented
  • Obtain
  • Outclass
  • Outlast
  • Outreach
  • On-the-money
  • Occupation
  • Objective
  • Oneness
  • Owner
  • On-the-beam
  • On-board
  • Orderly
  • Opportunistic
  • Oblige
  • Odyssey
  • Outsmart
  • Obediently
  • Omnicompetent
  • Oration
  • Outperforming
  • Outdo
  • Outbalance
  • Occasion
  • Ongoing
  • Operational
  • Organizational
  • Outspoken
  • Order
  • Outpoint
  • Overjoy
  • Osculate
  • Open-minded
  • Overbrimming
  • Organizer
  • Orator
  • Outsize
  • Outgoing
  • Overt
  • Objectively
  • Outface
  • Oscar
  • Outscore
  • Outsprint
  • Outshine
  • Oracy
  • Omniscience
  • Outdone
  • Open-hearted
  • Oncoming
  • Observant
  • Optimal
  • Open
  • Omnipresent
  • Obeisance
  • Orientation
  • Outfly
  • Overachieve
  • Overture
  • Orient
  • Optimism
  • Overjoying
  • Oversize
  • Oasis
  • Ornament
  • Opportunities
  • Outsail
  • Ornate
  • One-liner
  • Olympiad
  • Oohlala
  • Originative
  • Opulence
  • Overseer
  • Outstanding
  • Outdance
  • Olympian
  • Oath
  • Overmodest
  • Operative
  • Outdistance
  • Overage
  • Outback
  • Orotund
  • Out-of-this-world
  • Obtainable
  • Offer
  • Obedience
  • Otherworldly
  • Overfond
  • Occurrent
  • Organization
  • Opportunity
  • One-of-a-kind
  • Obligation
  • Observe
  • Option
  • Overtaken
  • Organized
  • Oscular
  • Okay
  • Open-heartedly

Positive Adjectives that Start with O with Meanings

1. Obedient: Obedient means that you are respectful and willing to listen to someone or do what they ask even if you don’t want to.

2. Objective: Objective means the qualities of being fair, honest, and able to evaluate something without letting your own feelings get in the way.

3. Obligated: Obligated means that you have a responsibility to do something, whether or not it’s easy for you.

4. Obliging: Obliging means that someone agrees to help or give something to someone else without being asked.

5. Observable: Observable means that someone is able to observe, discover of notice something with their senses, and not just using their imagination.

6. Observant: Observant means that someone notices things around them and especially people.

7. Observational: Observational means that someone sees a lot of details about the world around them and new things about themselves.

8. Obtainable: Obtainable means that you can get or obtain something from an object, person, or another source.

9. Obvious: Obvious means that someone can see or notice something without thinking about it very much or asking others to tell them what it is because they already know what it is without wanting to know details about it so much.

10. Occurrent: Occurrent means that someone is experiencing something or happening to them.

11. Official: Official means that something is true or exists and can be proved by looking at documents, and it’s also someone that works for an organization, company, company, or other group and has a title such as working in an office building.

12. OK: OK means that someone approves of something or someone without making many conditions and they’re being polite when saying they approve of something.

13. Okay: Okay means that something is not great but it’s being accepted as it is.

14. Olympian: Olympian means that someone is an expert at something and has the highest ability, skill, or rank in their area of expertise.

15. Olympic: Olympic means that something or someone is similar to the Olympics in some way, such as how it’s exciting for people to watch, or how it has a lot of rules with penalties for breaking them and making everyone follow certain standards when doing things.

16. Omnibus: Omnibus means that something is large enough or capable of including many different things inside of it without needing to go into detail about everything inside of it at once.

18. Omnipotent: Omnipotent means that someone is able to do anything, no matter how difficult or how much it would take, use their full power and ability, and doesn’t need anyone else’s help or power to make them do things.

19. Omnipresent: Omnipresent means that someone is present everywhere at once even though they are not in the same place at the same moment of time.

20. Omniscient: Omniscient means that someone is all-knowing, has complete and total knowledge of everything, and does not need to ask others what something is or how to do something.

21. On: On means that someone is near or touching a surface or area.


A lot of people use negative adjectives a lot more often than positive adjectives. The negative words hurt the person(s) they’re used to describe, and although it’s easier to say negative words. This short article should help you understand and notice when you’re using positive and negative adjectives, but it’s up to you to make the right decisions in your everyday life.

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