20 Expert English Vocabulary Words

Plethora… dwindle… ambiguous… have you seen these words before?

Today I’ll teach you 20 expert-level English words – and if you know them, it means your vocabulary is incredible! These words are used by highly-educated and articulate native English speakers.

Why not grab a pen and paper to write down the words, and give yourself a check mark by each one you already knew?

I’d also like to give you a gift to really skyrocket your vocabulary – it’s a downloadable PDF of 100 advanced words with definitions and examples. These are words that native English speakers study at the college and graduate-school level.

Our first advanced English word is…

1. Unprecedented (adjective)

Meaning: Never done or experienced before; without previous example

Example: “The pandemic caused an unprecedented shift to online learning.”

2. Adept (adjective)

Meaning: Highly skilled or proficient at something

Example: “She’s adept at explaining complex grammar in a simple way.”

3. Dwindle (verb)

Meaning: To gradually decrease or become smaller

Example: “Attendance at the evening class dwindled after the holidays.”

4. Mitigate (verb)

Meaning: To make something less severe, harmful, or painful

Example: “Wearing a seatbelt can mitigate the risk of injury in an accident.”

5. Plethora (noun)

Meaning: A large or excessive amount of something

Example: “Espresso English offers a plethora of lessons, courses, and e-books.”

6. Ambiguous (adjective)

Meaning: Unclear; open to multiple interpretations

Example: “The instructions were ambiguous, so no one knew what to do.”

7. Scrutinize (verb)

Meaning: To examine very carefully

Example: “Investors will scrutinize the company’s financial statements.”

8. Convey (verb)

Meaning: To communicate or express

Example: “It’s hard to convey sarcasm over text.”

9. Candid (adjective)

Meaning: Honest and direct, even when uncomfortable

Example: “She gave a candid answer about her experience with failure.”

10. Omit (verb)

Meaning: To leave out

Example: “You can omit that paragraph — it’s not essential.”

How are you doing so far? If you find these challenging and interesting, you’ll love the free bonus PDF teaching you 100 more advanced words!

Let’s keep going:

11. Caliber (noun)

Meaning: Level of quality or ability

Example: “They’re hiring someone of the highest caliber for the role.”

12. Prevalent (adjective)

Meaning: Widespread or commonly occurring

Example: “Work-from-home policies have become more prevalent.”

13. Nuance (noun)

Meaning: A subtle or slight difference in meaning or tone

Example: “His performance captured every nuance of the character.”

14. Detrimental (adjective)

Meaning: Harmful or damaging

Example: “Smoking is clearly detrimental to your health.”

15. Discrepancy (noun)

Meaning: A difference between two things that should match

Example: “There’s a discrepancy between the reports and the receipts.”

16. Pivotal (adjective)

Meaning: Critically important or central

Example: “That meeting was a pivotal moment in the negotiation.”

17. Refute (verb)

Meaning: To prove something is false or incorrect

Example: “She refuted the claim with solid evidence.”

18. Resilient (adjective)

Meaning: Able to recover quickly from difficulties; strong and adaptable

Example: “Despite many setbacks, she remained resilient and kept working toward her goal.”

19. Unleash (verb)

Meaning: To release something powerful or intense

Example: “The coach’s speech unleashed a wave of motivation in the team.”

20. Pinnacle (noun)

Meaning: The highest or most successful point of something

Example: “Winning the championship was the pinnacle of his career.”

So, how many of those advanced English words did you know?

If it was 15 or more, congratulations – you have expert-level English vocabulary.

If it was fewer — don’t worry. Because now you know some more advanced vocabulary words you can start using right away. And don’t stop here – go ahead and download the free PDF to learn 100 more.

👉 You can level up your vocabulary even further in the next 6 weeks by joining my Advanced Vocabulary and Collocations Course, where we learn 1000 powerful words and how to put them together naturally.

If you’re already an upper-intermediate or advanced English learner, this course is perfect for taking your English vocab to the next level of fluency and sophistication.

Advanced Vocabulary and Collocations Course

Advanced Vocabulary Course