52+ Negative Words Starting With O

Negative Words Starting With O

Looking for negative words starting with O? You’ve landed on the right page, below I’ve put together a list of negative words that start the letter O.

I’ve included some of the more interesting, unusual, and powerful adjectives that have negative implications.

Finding the right words to describe something in the way you want can be very powerful. I hope you find the word(s) you’re looking for, good luck!

52+ Negative Words Starting With O

Obese – grossly fat or overweight.

Objection – an expression or feeling of disapproval or opposition; a reason for disagreeing.

Oblique – neither parallel nor at right angles to a specified or implied line; slanting.

Obliterate – destroy utterly; wipe out.

Oblivious – not aware of or concerned about what is happening around one.

Obnoxious – extremely unpleasant.

Obscene – (of the portrayal or description of sexual matters) offensive or disgusting by accepted standards of morality and decency.

Obscure – not discovered or known about; uncertain.

Obsessive – of the nature of an obsession.

Obsolete – no longer produced or used; out of date.

Obstinate – stubbornly refusing to change one’s opinion or chosen course of action, despite attempts to persuade one to do so.

Obstruct – block (an opening, path, road, etc.); be or get in the way of.

Obtrusive – noticeable or prominent in an unwelcome or intrusive way.

Occlude – stop, close up, or obstruct (an opening, orifice, or passage).

Odd – different to what is usual or expected; strange.

Offense – a breach of a law or rule; an illegal act.

Offender – a person who commits an illegal act.

Officious – assertive of authority in a domineering way, especially with regard to trivial matters.

Ominous – giving the worrying impression that something bad is going to happen; threateningly inauspicious.

Omit – leave out or exclude (someone or something), either intentionally or forgetfully.

Onerous – (of a task or responsibility) involving a great deal of effort, trouble, or difficulty.

Onslaught – a fierce or destructive attack.

Opinionated – characterized by conceited assertiveness and dogmatism.

Opponent – someone who competes with or opposes another in a contest, game, or argument.

Opposition – resistance or dissent, expressed in action or argument.

Oppression – prolonged cruel or unjust treatment or exercise of authority.

Ordeal – a very unpleasant and prolonged experience.

Orphan – a child whose parents are dead.

Outbreak – a sudden occurrence of something unwelcome, such as war or disease.

Outburst – a sudden release of strong emotion.

Outcast – a person who has been rejected or ostracized by their society or social group.

Outcry – an exclamation or shout.

Outlaw – a person who has broken the law, especially one who remains at large or is a fugitive.

Outrage – an extremely strong reaction of anger, shock, or indignation.

Outrageous – shockingly bad or excessive.

Outsider – a person who does not belong to a particular organization or profession.

Over-acted – (of an actor or actress) act a role in an exaggerated manner.

Over-hyped – make exaggerated claims about (a product, idea, or event); publicize or promote excessively.

Over-priced – charge too high a price for.

Overreacted – respond more emotionally or forcibly than is justified.

Overbearing – unpleasantly overpowering.

Overblown – made to seem more impressive or important than is the case; exaggerated or pretentious.

Overdone – (of food) overcooked.

Overemphasize – place excessive emphasis on.

Overkill – excessive use, treatment, or action.

Overloaded – loaded with too great a burden or cargo.

Overpowered – defeat or overcome with superior strength.

Oversight – an unintentional failure to notice or do something.

Oversimplified – simplified to such an extent that a distorted impression is given.

Overstated – state too strongly; exaggerate.

Overwhelmed – bury or drown beneath a huge mass of something, especially water.

Overzealous – too zealous in one’s attitude or behavior.

Are there any negative words beginning with the letter O you think should be on this list? Drop me a comment, I’m always open to adding more words – thanks!

If you want to find more negative words starting with a different letter of the alphabet, just click one of the letters below:


Image credits – Photo by Joshua Hoehne on Unsplash

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