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)
You can Download PDF of the list of Adverbs starting with O to describe a person PDF.
Read Other Adverbs Starting With:
A – B – C – D – E – F – G – H – I – J – K – L – M – N – O – P – Q – R – S – T – U – V – W – X – Y – Z
Last updated on November 2nd, 2023 at 02:37 pm
