50+ Most Difficult English Words With Meanings

English vocabulary is important for a variety of reasons. It allows for effective communication in both written and spoken forms, and a strong vocabulary is often seen as a sign of intelligence and education. Thus, to help you improve your English speaking skills, I have provided 50+ most difficult English words along with their meanings. Since English is often an important component of many competitive exams, this post will also help you clear your entrance exams for colleges and universities, professional certification exams, and job-related exams. Let us see the most difficult English words with meaning.


  1. Ephemeral - lasting for a very short time

  2. Plethora - an excessive amount

  3. Flummox - to confuse or perplex

  4. Sesquipedalian - a person who uses long words

  5. Obsequious - too eager to obey or serve

  6. Perspicacious - having a keen understanding

  7. Mellifluous - sweet or musical in sound

  8. Salubrious - conducive to good health

  9. Supercilious - having or showing an attitude of contempt or condescension

  10. Ineffable - too great or extreme to be described in words

  11. Quixotic - idealistic but unrealistic

  12. Obfuscate - to make something unclear or difficult to understand

  13. Lachrymose - causing tears or sadness

  14. Prevaricate - to avoid giving a straight answer

  15. Epistemology - the branch of philosophy concerned with knowledge

  16. Perspicacity - the ability to understand things quickly and clearly

  17. Discombobulate - to confuse or disconcert

  18. Inscrutable - difficult to understand or interpret

  19. Ineffable - too great or extreme to be described in words

  20. Lagniappe - a small gift given to a customer in addition to what was paid for

  21. Perspicacious - having a keen understanding

  22. Antediluvian - extremely ancient, from before the biblical flood

  23. Brouhaha - a commotion or fuss, especially over something insignificant

  24. Mellifluous - sweet or musical in sound

  25. Salubrious - conducive to good health

  26. Supercilious - having or showing an attitude of contempt or condescension

  27. Xenophobia - fear or hatred of foreigners, people from different cultures, or strangers

  28. Yawn - a reflex act of opening one's mouth wide and inhaling deeply due to tiredness or boredom

  29. Zealot - a person who is fanatical and uncompromising in pursuit of their religious, political, or other ideals.

  30. Ineffable - too great or extreme to be described in words

  31. Quixotic - idealistic but unrealistic

  32. Obfuscate - to make something unclear or difficult to understand

  33. Fastidious - very attentive to detail and difficult to please

  34. Grandiloquent - using high-flown or bombastic language

  35. Lachrymose - causing tears or sadness

  36. Prevaricate - to avoid giving a straight answer

  37. Cacophony - a harsh, discordant mixture of sounds

  38. Dichotomy - a division or contrast between two things that are or are represented as being opposed or entirely different

  39. Lassitude - a state of physical or mental weariness; lack of energy

  40. Obdurate - stubbornly refusing to change one's mind or course of action

  41. Ennui - a feeling of weariness and dissatisfaction

  42. Hyperbolic - exaggerated or extravagant in language or behavior

  43. Jettison - to throw something overboard, especially in order to lighten a ship or aircraft in an emergency

  44. Knavery - dishonesty or trickery

  45. Paroxysm - a sudden attack or violent expression of an emotion or activity

  46. Quagmire - a difficult or precarious situation

  47. Recalcitrant - resisting authority or control

  48. Salacious - having or showing an excessive interest in sexual matters

  49. Tautology - the unnecessary repetition of an idea, often in different words

  50. Ubiquitous - present or appearing everywhere at the same time

  51. Vexation - the state of being annoyed or troubled; irritation

  52. Whelp - a young animal, especially a young dog or wolf

  53. Malapropism - the unintentional use of an incorrect word in place of a similar-sounding word, often to humorous effect

  54. Nihilism - the rejection of all religious and moral principles, often in the belief that life is meaningless

  55. Inchoate - in an initial or early stage; not fully formed


Practical Importance of English Vocabulary


English is a widely spoken language and is considered the language of international communication, thus, a strong command of English can be beneficial there as well. Additionally, a wide range of vocabulary can help in areas such as reading comprehension, problem-solving, and critical thinking. Furthermore, English is one of the most widely spoken languages in the world and is often used as a common language in business, education, and international communication, so having a strong command of the English language and its vocabulary can have many practical benefits.

Comments