TOEFL (vocabulary) synonym/antonym practice test 19 of 31

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Question 1 of 10: Identify the synonyms/antonyms of "enigma".

1. perplexity

2. problem

3. definiteness

4. sphinx

5. puzzler

6. explicitness

7. mystery

8. certainty

9. mind-boggler

10. teaser

11. puzzlement

12. crux

13. grabber

14. parable

15. Gordian knot

16. sixty-four dollar question

17. secret

18. conundrum

19. knot

20. question

21. mind-twister

22. clearness

23. lucidity

24. cryptogram

25. s

26. puzzle

27. bewilderment

28. cliffhanger

29. question mark

30. riddle

31. mystification

32. clarity

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