1.ask – answer
2. forget – remember
3. after – before
4. none – all
5. buy – sell
6. down – up
7. open – close
8. late – early
9. neither – both
10. sleep – wake
11. far – near
12. come – go
13. borrow – lend
14. hate – like / love
15. cry – laugh
16. back – front
17. best – worst
18. better – worse
19. busy – free
20. bad – good
21. empty – full
22. easy – hard / difficult
23. different – same
24. closed – open
25. cheap – dear / expensive
26. comfortable – uncomfortable
27. wrong – right
28. left – right
29. safe – dangerous
30. rich – poor
31. hot – cold
32. cool – warm
33. dry – wet
34. a.m. – p.m.
35. thin – fat / thick
36. east – west
37. slow – fast
38. north – south
39. above – below
40. noisy – quiet
41. strong – weak
42. heavy – light
43. clean – dirty
44. high – low
45. ill – well
46. possible – impossible
47. big – small
48. pull – push
49. here – there
50. clever – foolish
51. dark – bright / light
52. young – old
53. new – old
54. tall – short
55. upstairs – downstairs
56. wide – narrow
57. with – without
58. plus – minus
59. hungry – full
60. asleep – awake