Opposites with Prefixes and suffixes.

1. able x unable (prefix)
2. complete x incomplete
3. proper x improper
4. guide x misguide
5. regular x irregular
6. ordinary x extraordinary
7. social x anti – social
8. legal x illegal
9. encourage x discourage
10. interior x exterior
11. agree x disagree
12. careful x careless (suffix)
13. fearful x fearless
14. appear x disappear
15. direct x indirect
16. perfect x imperfect
17. septic x antiseptic
18. ability x inability
19. useful x useless
20. important x unimportant
21. call x miscall
22. national x international
23. correct x incorrect
24. pure x impure
25. obey x disobey
26. understand x misunderstand
27. literate x illiterate
28. war x antiwar
29. clear x unclear
30. willing  x unwilling
31. pleasant x unpleasant
32. romantic x unromantic
33. developed x undeveloped
34. equal x unequal
35. definite x indefinite
36. aware x unaware
37. respect x disrespect
38. patient  x impatient
39. responsible x irresponsible
40. lock x unlock
41. cyclone x anti – cyclone
42. like x dislike
43. continue x discontinue
44. restless x restful
45. justice x injustice
46. experienced x inexperienced
47. valuable x valueless
48. successful x unsuccessful
49. necessary x unnecessary
50. maximum x minimum
51. powerful x powerless
52. sensitive x insensitive
53. vegetarian x non vegetarian
54. reserved x unreserved
55. kind x unkind
56. friendly x unfriendly
57. advantage x disadvantage
58. connect x disconnect
59. give x receive
60. normal x abnormal