Most Common English Adjectives That Start With "O"

Most Common English Adjectives That Start With "O" | English A1 Level (Beginner / Elementary)
10 Word
Old
Definition: Having lived for a long time; not new.
- My grandmother is very old.
- This book is old but full of wisdom.
- He has an old toy from his childhood.
Open
Definition: To allow access to something; to make available.
- Please open the window to let in fresh air.
- He will open the door for his guests.
- They decided to open a new restaurant downtown.
Orange
Definition: A round, citrus fruit with a tough skin; also a color.
- I like to eat a juicy orange for a snack.
- The orange is bright and sweet.
- She wore an orange dress to the party.
Odd
Definition: strange or unusual; also refers to numbers not divisible by two
- That was an odd thing to say in class.
- She wore an odd pair of socks for fun.
- He has an odd collection of rare coins.
Oily
Definition: covered with oil; greasy
- His hands were oily after working on the car.
- The food was too oily for her taste.
- Understanding oily textures can improve cooking skills.
Online
Definition: Connected to or via the internet.
- I like to shop online.
- He took an online course to learn programming.
- They met each other online through a game.
Outgoing
Definition: Friendly and sociable; willing to communicate.
- She is very outgoing and makes friends easily.
- His outgoing personality helps him in sales.
- The outgoing students organized a welcome event.
Official
Definition: authorized or recognized by an authority
- The document was stamped with an official seal.
- He was the official spokesperson for the organization.
- Understanding what is official can help avoid confusion.
Ordinary
Definition: common or usual; not special or different
- It was an ordinary day with nothing unusual happening.
- He prefers ordinary clothes over flashy ones.
- The book tells the story of an ordinary family.
Overall
Definition: In general; when considering everything; a summary or conclusion.
- Overall, the project was a success despite some challenges.
- She received positive feedback overall from her presentation.
- The overall experience was enjoyable for everyone.
Most Common English Adjectives That Start With "O" | English A2 Level (Pre-Intermediate)
4 Word
Obvious
Definition: Easily perceived or understood; clear and apparent.
- The answer to the question was obvious to everyone.
- It was obvious that she was excited about the surprise.
- His obvious talent impressed the judges.
Optimistic
Definition: Having a hopeful and positive outlook on the future.
- He is optimistic about his chances of getting into college.
- Her optimistic attitude helped motivate the team.
- Understanding optimistic perspectives can improve mental health.
Offensive
Definition: causing someone to feel hurt, upset, or annoyed
- His comments were deemed offensive by many.
- She found the joke to be offensive and inappropriate.
- Using offensive language can lead to misunderstandings.
Occasional
Definition: Happening from time to time; not regular or frequent.
- They have occasional meetings to discuss progress.
- She enjoys occasional treats, like ice cream.
- The occasional rain shower can be refreshing.
Most Common English Adjectives That Start With "O" | English B1 Level (Intermediate)
2 Word
Original
Definition: the first or earliest version of something
- The painting is an original, not a copy.
- She submitted an original story for the competition.
- Understanding what is original can enhance creativity.
Outstanding
Definition: Exceptionally good or excellent; prominent.
- He received an award for his outstanding achievements.
- Her outstanding performance impressed the judges.
- There were many outstanding projects submitted for review.
Most Common English Adjectives That Start With "O" | English B2 Level (Upper Intermediate)
3 Word
Ongoing
Definition: Continuing or still in progress; not finished.
- The project is ongoing and will take several months.
- He has an ongoing interest in science.
- The ongoing discussions are important for decision-making.
Optional
Definition: Not mandatory; something that can be chosen or not chosen.
- The extra credit assignment is optional for students.
- Participation in the club is optional, but encouraged.
- She decided to take the optional course for fun.
Obscure
Definition: Not well-known or difficult to understand; hidden.
- The meaning of the poem was obscure to many students.
- He enjoys reading obscure books that others overlook.
- They discussed an obscure topic during the lecture.
Most Common English Adjectives That Start With "O" | English C1 Level (Advanced)
11 Word
Obsolete
Definition: No longer produced or used; outdated.
- Many technologies have become obsolete in recent years.
- The typewriter is considered obsolete.
- They replaced obsolete equipment with modern tools.
Obstinate
Definition: Stubbornly refusing to change one’s opinion or chosen course.
- He was obstinate about his decision despite advice.
- Her obstinate attitude made discussions difficult.
- Being obstinate can sometimes hinder progress.
Ornate
Definition: Highly decorative and intricate in style.
- The ornate design of the building impressed everyone.
- She wore an ornate necklace for the special occasion.
- The invitations had an ornate border that made them look elegant.
Overwhelming
Definition: Too much to deal with; very intense or powerful.
- The support from her friends was overwhelming.
- He faced overwhelming challenges during the project.
- The response to the event was overwhelmingly positive.
Opaque
Definition: Not able to be seen through; not transparent.
- The curtains are opaque, blocking out all sunlight.
- He used an opaque container to store the food.
- Opaque materials are useful for privacy.
Ominous
Definition: Suggesting that something bad is going to happen; threatening.
- The sky looked ominous before the storm hit.
- His tone was ominous, making everyone worry.
- She felt an ominous chill in the air as night approached.
Objective
Definition: Something aimed at or sought; a goal.
- Her main objective is to improve her grades.
- The team's objective is to win the championship.
- He set a clear objective for the project.
Organic
Definition: Produced without the use of synthetic chemicals or fertilizers.
- She prefers to eat organic fruits and vegetables.
- Organic farming helps maintain soil health.
- Understanding organic products can lead to healthier choices.
Most Common English Adjectives That Start With "O" | English C2 Level (Proficiency / Mastery)
5 Word
Opulent
Definition: Rich, luxurious, and lavish in appearance or lifestyle.
- The hotel suite was opulent, with gold accents and fine art.
- She wore an opulent dress to the gala.
- The opulent lifestyle of the celebrities fascinated her.
Ostentatious
Definition: Designed to impress or attract notice; flashy or showy.
- Her ostentatious outfit drew everyone's attention.
- He lived in an ostentatious mansion in the city.
- Ostentatious displays of wealth can be off-putting.
Obsessive
Definition: Relating to or characterized by an obsession; often overly focused.
- His obsessive nature made it hard to relax.
- She had obsessive thoughts about her performance.
- Obsessive behavior can lead to anxiety.
The word usage examples above have been gathered from various sources to reflect current and historical usage of the word . They do not represent the opinions of TranslateEN.com.
« Previous Word List: Most Common English Adjectives That Start With "N"
Next Word List: Most Common English Adjectives That Start With "P" »