All Adverbs that Start With O

Adverbs are essential parts of speech that modify verbs, adjectives, or other adverbs. They add depth and meaning to sentences and are used to describe how actions are performed.

With over 6,000 adverbs in the English language, it’s not always easy to find the right one for a particular sentence. That’s why we’ve compiled a list of 150 Adverbs Starting with O to help you enhance your writing.

In this article, we’ll explore a variety of adverbs starting with the letter O.

Whether you’re looking for words to describe an action that is done quickly like “outstandingly” or want to convey how something is being observed like “obviously,” this comprehensive list has got you covered.

Adverbs that Start With O

Below are 30 Top Adverbs That Start with O, along with meaning and example sentences. (Skip to Complete List)

1. Obviously

Meaning: In a way that is easily perceived or understood; clearly.

Example: He was obviously upset about the news.

2. Occasionally

Meaning: At infrequent or irregular intervals; now and then.

Example: She visits her hometown occasionally.

3. Outwardly

Meaning: On the surface; to all outward appearances.

Example: Outwardly, he seemed confident, but inside he was nervous.

4. Overly

Meaning: Excessively.

Example: The dish was overly seasoned.

5. Ominously

Meaning: In a way that suggests that something bad is going to happen.

Example: The sky darkened ominously.

6. Openly

Meaning: Without concealment; frankly.

Example: She spoke openly about her struggles.

7. Originally

Meaning: At first; initially.

Example: Originally, we planned to travel in June.

8. Overwhelmingly

Meaning: To a very great degree or with a great majority.

Example: The motion was overwhelmingly approved.

9. Oddly

Meaning: In a strange or unusual manner.

Example: He reacted oddly to the question.

10. Officially

Meaning: In a formal and public manner.

Example: The project was officially launched yesterday.

11. Objectively

Meaning: In a manner that is not influenced by personal feelings or opinions.

Example: The judge has to consider the evidence objectively.

12. Ostensibly

Meaning: Apparently or purportedly, but perhaps not actually.

Example: He was ostensibly there for a business trip.

13. Overnight

Meaning: For the duration of a night.

Example: The city changed almost overnight.

14. Optimally

Meaning: In the best possible manner; most favorably or advantageously.

Example: To function optimally, the machine requires regular maintenance.

15. Outlandishly

Meaning: In a bizarre or unfamiliar manner.

Example: She dressed rather outlandishly for the event.

16. Oppressively

Meaning: In a harsh or cruel manner.

Example: The sun beat down oppressively.

17. Orally

Meaning: By means of speech; verbally.

Example: The instructions were given orally.

18. Obligingly

Meaning: In a willing or accommodating manner.

Example: He obligingly opened the door for her.

19. Organically

Meaning: In a manner that is free from pesticides and synthetic fertilizers.

Example: The vegetables are grown organically.

20. Outrageously

Meaning: In a manner that is shockingly bad or excessive.

Example: The prices are outrageously high.

21. Offensively

Meaning: In a manner that causes annoyance or resentment.

Example: He spoke offensively about her background.

22. Ordinarily

Meaning: Usually; generally.

Example: I don’t ordinarily drink coffee.

23. Overtly

Meaning: In an open and unsecretive manner.

Example: He did not overtly express his discontent.

24. Obsessively

Meaning: In a relentless or excessive manner.

Example: He checked his phone obsessively.

25. Obstinately

Meaning: In a stubbornly unyielding or inflexible manner.

Example: She held on obstinately to her beliefs.

26. Opportunely

Meaning: In a manner that is suitable or convenient for a particular occurrence.

Example: The rain stopped opportunely just as the event began.

27. Outright

Meaning: Completely or immediately.

Example: She denied the accusations outright.

28. Outstandingly

Meaning: In an exceptional manner.

Example: She performed outstandingly in the exams.

29. Overarchingly

Meaning: In a comprehensive or dominant manner.

Example: The theme overarchingly represented in the film is love.

30. Overtiringly

Meaning: In a manner that causes excessive fatigue.

Example: The journey was long and overtiringly tedious.

All Adverbs Starting With O

Oathfully Obdurately Obediently
Obeisantly Obeyingly Obiter
Obituarily Objectively Obligatorily
Obligedly Obligingly Obliquely
Obliviously Oblongly Obnoxiously
Obscenely Obscurely Obsequiously
Observably Observantly Observingly
Obsessively Obsoletely Obstinately
Obstreperously Obtrusively Obtusely
Obversely Obviously Occasionally
Occultly Ocularly Oddly
Odiously Odorously Offendedly
Offensively Offhandedly Officially
Officiously Often Oftentimes
Ofttimes Oilily Ominously
Omnipotently Once Onerously
Ones Online Only
Onto Onward Onwards
Opaquely Openhandedly Openly
Operosely Opinionatedly Opportunely
Opportunistically Opposite Oppositely
Oppressively Optatively Optically
Optimally Optimistically Optionally
Opulently Oracularly Orally
Ordinarily Ordinately Organizationally
Originally Ornamentally Ornately
Ornerily Orthodoxly Oscitantly
Ostensibly Ostentatiously Other
Othergates Others Otherways
Otherwhere Otherwise Outcept
Outdoors Outerly Outlandishly
Outragedly Outrageously Outrightly
Outside Outspokenly Outward
Outwardly Outwards Ovally
Over Overall Overbearingly
Overboard Overconfidently Overhead
Overhighly Overleaf Overly
Overmore Overmuch Overprotectively
Overseas Overside Oversoon
Overtime Overtly Overwhelmingly
Owlishly Oxymoronically  

Also study: Complete List of Adverbs

Also Study: Adjectives starting with O

Positive Adverbs That Start With O

  • Open-handedly
  • Opulently
  • Once
  • Objectively
  • Openly
  • Optimally
  • Open-heartedly
  • Obligingly
  • Opportunely
  • Optimistically
  • Outstandingly
  • Observantly
  • Open-mindedly
  • Originally

Negative Adverbs That Start With O

  • Obdurately
  • Obituarily
  • Objectively
  • Obligatorily
  • Obscurely
  • Obsessively
  • Obsoletely
  • Obviously
  • Occasionally
  • Occupationally
  • Oddly
  • Offensively
  • Offhandedly
  • Officiously
  • Ominously
  • Once
  • One by one
  • Only
  • Only just
  • Opaquely
  • Openly
  • Operatively
  • Oppositely
  • Oppressively
  • Optically
  • Optionally
  • Orderly
  • Ordinary
  • Organically
  • Ornately
  • Orthographically
  • Ostentatiously
  • Otherwise

Info-graphics (Adverbs that start with O pdf)

 Adverbs starting with O to describe a person PDF  Adverbs starting with O to describe a person PDF  Adverbs starting with O to describe a person PDF

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Last updated on November 2nd, 2023 at 02:37 pm