1. Accept – to receive willingly; Reject – to refuse to accept.
  2. Accurate – free from mistakes; Inaccurate – not precise or correct.
  3. Active – engaging in physical activity; Inactive – not participating or moving.
  4. Agree – to concur or consent; Disagree – to have a different opinion.
  5. Allow – to give permission; Forbid – to prohibit or refuse permission.
  6. Ancient – very old; Modern – relating to the present or recent times.
  7. Arrival – coming to a place; Departure – leaving a place.
  8. Broad – wide; Narrow – limited in width or extent.
  9. Brave – showing courage; Cowardly – lacking courage.
  10. Certain – without doubt; Uncertain – not sure or definite.
  11. Clean – free from dirt; Dirty – covered with dirt or stains.
  12. Complex – consisting of many parts; Simple – easily understood or done.
  13. Construct – to build or form; Destroy – to ruin or demolish.
  14. Courage – bravery; Fear – an unpleasant emotion caused by the threat of danger.
  15. Create – to make something new; Destroy – to ruin or make something unusable.
  16. Decrease – to become smaller; Increase – to become larger.
  17. Defend – to protect from harm; Attack – to assault or criticize.
  18. Delight – great pleasure; Displeasure – dissatisfaction or unhappiness.
  19. Demand – to ask urgently; Request – to ask politely or formally.
  20. Distant – far away; Near – close in space or time.
  21. Dull – lacking interest or excitement; Sharp – vivid or intense.
  22. Empty – containing nothing; Full – containing as much as possible.
  23. Equal – the same in quantity or degree; Unequal – not the same or not balanced.
  24. Examine – to inspect closely; Ignore – to pay no attention to.
  25. Expand – to increase in size or volume; Contract – to decrease in size or volume.
  26. Generous – showing kindness or willingness to give; Stingy – unwilling to share.
  27. Genuine – real or authentic; Fake – not real; counterfeit.
  28. Happy – feeling joy; Sad – feeling sorrow or unhappiness.
  29. Humble – modest or unpretentious; Proud – having a high opinion of oneself.
  30. Include – to contain as part of a whole; Exclude – to leave out or not include.
  31. Indicate – to point out or show; Conceal – to hide or keep something secret.
  32. Innocent – not guilty of a crime or offense; Guilty – responsible for a crime or offense.
  33. Knowledgeable – possessing knowledge; Ignorant – lacking knowledge or awareness.
  34. Liberal – open to new behavior or opinions; Conservative – holding traditional attitudes.
  35. Major – important or significant; Minor – lesser in importance or significance.
  36. Mature – fully developed; Immature – not fully developed or grown.
  37. Maximum – the greatest possible amount; Minimum – the smallest possible amount.
  38. Natural – existing in or caused by nature; Artificial – made or produced by human beings.
  39. Open – not closed or obstructed; Closed – shut or sealed.
  40. Optimistic – hopeful and confident; Pessimistic – tending to see the negative side.
  41. Orderly – neat and organized; Disorderly – messy or chaotic.
  42. Original – first or earliest; Copy – a reproduction or imitation.
  43. Patient – able to wait without frustration; Impatient – unable to wait calmly.
  44. Polite – showing good manners; Rude – impolite or offensive.
  45. Positive – favorable or constructive; Negative – unfavorable or pessimistic.
  46. Precise – exact and accurate; Vague – not clear or specific.
  47. Public – available to everyone; Private – intended for a specific person or group.
  48. Reliable – trustworthy; Unreliable – not dependable or trustworthy.
  49. Respect – admiration and regard; Disrespect – lack of respect or esteem.
  50. Secure – safe and protected; Insecure – not safe or lacking confidence.
  51. Shallow – not deep; Deep – extending far down from the surface.
  52. Simple – easily understood or done; Complex – consisting of many interconnected parts.
  53. Solid – firm and stable; Liquid – not solid; flowing.
  54. Stable – not likely to change; Unstable – likely to change or fall apart.
  55. Succeed – to achieve a desired result; Fail – to not achieve a desired result.
  56. Temporary – lasting for a limited time; Permanent – lasting for a long time.
  57. True – in accordance with fact; False – not true; incorrect.
  58. Unique – one of a kind; Common – usual or frequent.
  59. Valuable – worth a lot; Worthless – not worth anything.
  60. Visible – able to be seen; Invisible – not able to be seen.
  61. Warm – moderately hot; Cool – moderately cold.
  62. Win – to achieve victory; Lose – to fail to win.
  63. Wise – having knowledge and good judgment; Foolish – lacking sense or wisdom.
  64. Young – having lived only a short time; Old – having lived a long time.
  65. Bold – showing courage or willingness to take risks; Timid – showing a lack of courage.
  66. Cheerful – noticeably happy and optimistic; Gloomy – dark or poorly lit.
  67. Confident – having trust in oneself; Doubtful – uncertain or lacking confidence.
  68. Diligent – showing care and effort in work; Negligent – failing to take proper care.
  69. Easy – not difficult; Difficult – requiring much effort or skill.
  70. Frequent – occurring often; Rare – not occurring very often.
  71. Generous – willing to give or share; Selfish – concerned only with oneself.
  72. Harsh – severe or cruel; Gentle – mild and kind.
  73. Honest – truthful and sincere; Dishonest – not truthful or sincere.
  74. Immense – extremely large; Tiny – very small.
  75. Industrious – hardworking and diligent; Lazy – unwilling to work or put in effort.
  76. Joyful – full of joy; Miserable – very unhappy.
  77. Kind – showing consideration and care; Mean – unkind or cruel.
  78. Lively – full of energy and life; Lethargic – sluggish and lacking energy.
  79. Natural – not artificial; Synthetic – artificially created.
  80. Optimistic – hopeful about the future; Pessimistic – expecting the worst.
  81. Practical – sensible and realistic; Impractical – not sensible or realistic.
  82. Profitable – yielding profit or benefit; Unprofitable – not yielding profit.
  83. Regular – occurring at consistent intervals; Irregular – not consistent in pattern.
  84. Silent – free from sound; Noisy – characterized by loud or disruptive sounds.
  85. Sturdy – strong and durable; Fragile – easily broken or damaged.
  86. Tough – strong and resilient; Weak – lacking strength or durability.
  87. Vivid – producing powerful feelings or images; Dull – lacking brightness or interest.
  88. Wise – having experience and knowledge; Naive – lacking experience or sophistication.
  89. Young – in an early stage of life; Elderly – advanced in age.
  90. Agreeable – pleasant and willing to agree; Disagreeable – unpleasant or uncooperative.