Common Antonyms in the IELTS Exam. If you want to do well in the IELTS exam, it is very important to know common words and their antonyms.
Here is a list; I hope it is able to help you.
| WORD | ANTONYM |
| Abundant | Scarce |
| Accept | Reject |
| Accurate | Inaccurate |
| Active | Lazy |
| Advantage | Disadvantage |
| Artificial | Natural |
| Attract | Repel |
| Authentic | Fake |
| Avoid | Confront |
| Bold | Timid |
| Calm | Agitated |
| Complex | Simple |
| Create | Destroy |
| Dangerous | Safe |
| Decrease | Increase |
| Defend | Attack |
| Deny | Admit |
| Destroy | Build |
| Dull | Interesting |
| Efficient | Inefficient |
| Encourage | Discourage |
| Enhance | Diminish |
| Essential | Unnecessary |
| Expand | Contract |
| External | Internal |
| Flexible | Rigid |
| Frequent | Rare |
| Generous | Stingy |
| Genuine | Fake |
| Harmony | Conflict |
| Hope | Despair |
| Humble | Proud |
| Ignore | Notice |
| Improve | Worsen |
| Include | Exclude |
| Increase | Decrease |
| Inspire | Discourage |
| Internal | External |
| Justice | Injustice |
| Knowledge | Ignorance |
| Lively | Dull |
| Major | Minor |
| Maximum | Minimum |
| Miserable | Joyful |
| Modern | Ancient |
| Natural | Artificial |
| Opponent | Supporter |
| Ordinary | Extraordinary |
| Patient | Impatient |
| Permanent | Temporary |
| Polite | Rude |
| Positive | Negative |
| Powerful | Weak |
| Praise | Criticize |
| Prevent | Allow |
| Private | Public |
| Problem | Solution |
| Profit | Loss |
| Proud | Humble |
| Public | Private |
| Purchase | Sell |
| Quick | Slow |
| Raise | Lower |
| Random | Systematic |
| Rare | Common |
| Real | Imaginary |
| Reduce | Increase |
| Refuse | Accept |
| Regular | Irregular |
| Relevant | Irrelevant |
| Reliable | Unreliable |
| Remote | Nearby |
| Rich | Poor |
| Rise | Fall |
| Rough | Smooth |
| Rural | Urban |
| Safe | Dangerous |
| Same | Different |
| Secure | Insecure |
| Seldom | Often |
| Separate | Combine |
| Serious | Trivial |
| Shallow | Deep |
| Simple | Complex |
| Smooth | Rough |
| Sorrow | Joy |
| Sour | Sweet |
| Special | General |
| Stable | Unstable |
| Start | Finish |
| Straight | Crooked |
| Strong | Weak |
| Stupid | Intelligent |
| Success | Failure |
| Sufficient | Insufficient |
| Synthetic | Natural |
| Temporary | Permanent |
| Tight | Loose |
| Tiny | Huge |
| Transparent | Opaque |
| Truth | Lie |
| Unique | Common |
| Upset | Calm |
| Useful | Useless |
| Vacant | Occupied |
| Visible | Invisible |
| Weak | Strong |
| Wealthy | Poor |
| Wide | Narrow |
| Wise | Foolish |
| Young | Old |
| Absent | Present |
| Add | Subtract |
| Admit | Deny |
| Advance | Retreat |
| Affirmative | Negative |
| Alive | Dead |
| All | None |
| Amuse | Bore |
| Ancient | Modern |
| Angel | Devil |
| Answer | Question |
| Apart | Together |
| Arrival | Departure |
| Ascend | Descend |
| Attack | Defend |
| Awake | Asleep |
| Background | Foreground |
| Beautiful | Ugly |
| Before | After |
| Beginning | End |
| Best | Worst |
| Big | Small |
| Birth | Death |
| Bitter | Sweet |
| Black | White |
| Blunt | Sharp |
| Body | Soul |
| Boring | Exciting |
| Bottom | Top |
| Boy | Girl |
| Brave | Cowardly |
| Break | Fix |
| Brief | Long |
| Bright | Dull |
| Brother | Sister |
| Build | Demolish |
| Buy | Sell |
| Capture | Release |
| Careful | Careless |
| Catch | Miss |
| Cautious | Reckless |
| Cease | Continue |
| Cheap | Expensive |
| Cheerful | Gloomy |
| Clean | Dirty |
| Clever | Stupid |
| Close | Open |
| Cold | Hot |
| Combine | Separate |
| Comfortable | Uncomfortable |
| Comedy | Tragedy |
| Complicate | Simplify |
| Compliment | Insult |
| Conceal | Reveal |
| Contract | Expand |
| Cool | Warm |
| Correct | Incorrect |
| Courage | Fear |
| Cruel | Kind |
| Cry | Laugh |
| Dark | Light |
| Day | Night |
| Dead | Alive |
| Desperate | Hopeful |
| Difficult | Easy |
| Dirty | Clean |
| Divide | Unite |
| Doctor | Patient |
| Early | Late |
| East | West |
| Empty | Full |
| End | Begin |
| Enter | Exit |
| Even | Odd |
| Exclude | Include |
| Exit | Entrance |
| Export | Import |
| Fail | Succeed |
| FALSE | TRUE |
| Famous | Unknown |
| Fast | Slow |
| Fat | Thin |
| Fiction | Fact |
| Final | First |
| Find | Lose |
| Finish | Start |
| Follow | Lead |
| Foolish | Wise |
| For | Against |
| Foreground | Background |
| Forget | Remember |
| Free | Restricted |
| Friend | Enemy |
| Front | Back |
| Gentle | Rough |
| Giant | Tiny |
| Give | Take |
| Good | Bad |
| Guest | Host |
| Guilty | Innocent |
| Happy | Sad |
| Hard | Soft |
| Harsh | Gentle |
| Hate | Love |
| Health | Disease |
| Heaven | Hell |
| Heavy | Light |
| Help | Hinder |
| Hero | Villain |
| High | Low |
| Horizontal | Vertical |
| Humid | Dry |
| Hungry | Full |
| In | Out |
| Innocent | Guilty |
| Joy | Sorrow |
| Junior | Senior |
| Kind | Cruel |
| Land | Sea |
| Laugh | Cry |
| Lawful | Unlawful |
| Lazy | Diligent |
| Leader | Follower |
| Left | Right |
| Less | More |
| Life | Death |
| Light | Dark |
| Likely | Unlikely |
| Liquid | Solid |
| Little | Big |
| Long | Short |
| Lose | Win |
| Loud | Quiet |
| Love | Hate |
| Low | High |
| Lower | Raise |
| Male | Female |
| Marvelous | Terrible |
| Mature | Immature |
| Melt | Freeze |
| Messy | Neat |
| Miss | Hit |
| Moderate | Extreme |
| Narrow | Wide |
| Negative | Positive |
| Never | Always |
| New | Old |
| Night | Day |
| Noisy | Quiet |
| Normal | Strange |
| North | South |
| Notice | Ignore |
| Nurture | Neglect |
| Obedient | Disobedient |
| Offer | Refuse |
| Often | Seldom |
| Old | Young |
| Open | Close |
| Opposite | Same |
| Optimistic | Pessimistic |
| Out | In |
| Over | Under |
| Pain | Pleasure |
| Partial | Complete |
| Passive | Active |
| Past | Future |
| Peace | War |
| Permit | Forbid |
| Plenty | Lack |
| Plural | Singular |
| Poor | Rich |
| Presence | Absence |
| Pretty | Ugly |
| Protect | Attack |
| Pull | Push |
| Pure | Impure |
| Push | Pull |
| Rear | Front |
| Regret | Satisfaction |
| Release | Hold |
| Repair | Damage |
| Respect | Disrespect |
| Right | Left |
| Rude | Polite |
| Sad | Happy |
| Salt | Sugar |
| Sane | Insane |
| Satisfy | Dissatisfy |
| Save | Spend |
| Scream | Whisper |
| Sell | Buy |
| Short | Tall |
| Shout | Whisper |
| Shut | Open |
| Sick | Healthy |
| Sink | Float |
| Slim | Fat |
| Slow | Fast |
| Small | Large |
| Soft | Hard |
| Solid | Liquid |
| South | North |
| Stay | Leave |
| Stop | Go |
| Sugar | Salt |
| Summer | Winter |
| Sun | Moon |
| Sunny | Cloudy |
| Sweet | Bitter |
| Tall | Short |
| Tame | Wild |
| Teach | Learn |
| Thick | Thin |
| Together | Apart |
| Top | Bottom |
| Total | Partial |
| Tough | Tender |
| TRUE | FALSE |
| Ugly | Beautiful |
| Under | Over |
| Unite | Divide |
| Unity | Division |
| Unknown | Known |
| Up | Down |
| Urban | Rural |
| Vague | Clear |
| Vertical | Horizontal |
| Victory | Defeat |
| Virtue | Vice |
| Voluntary | Compulsory |
| Warm | Cool |
| War | Peace |
| Wet | Dry |
| White | Black |
| Whole | Partial |
| Win | Lose |
| Winter | Summer |
| Woman | Man |
| Work | Play |
| Worse | Better |
| Worst | Best |
| Wrong | Right |
| Yes | No |
| Ascent | Descent |
| Backward | Forward |
| Beauty | Ugliness |
| Begin | End |
| Ceiling | Floor |
| Change | Maintain |
| Connect | Separate |
| Constant | Variable |
| Construct | Demolish |
| Damage | Repair |
| Danger | Safety |
| Deep | Shallow |
| Demand | Supply |
| Depart | Arrive |
| Despair | Hope |
| Die | Live |
| Down | Up |
| Emigrate | Immigrate |
| Exterior | Interior |
| Failure | Success |
| Fear | Courage |
| Female | Male |
| Few | Many |
| Fix | Break |
| Flat | Hilly |
| Float | Sink |
| Foreign | Domestic |
| Forward | Backward |
| Freeze | Melt |
| Full | Empty |
| Gloomy | Cheerful |
| Go | Come |
| Grant | Refuse |
| Happiness | Sadness |
| Healthy | Sick |
| Hide | Show |
| Hinder | Help |
| Honest | Dishonest |
| Honor | Disgrace |
| Host | Guest |
| Hot | Cold |
| Illegal | Legal |
| Immature | Mature |
| Immense | Tiny |
| Import | Export |
| Impossible | Possible |
| Insane | Sane |
| Inside | Outside |
| Insult | Compliment |
| Integrate | Segregate |
| Intentional | Accidental |
| Join | Separate |
| Keep | Release |
| Large | Small |
| Lead | Follow |
| Lie | Truth |
| Like | Dislike |
| Live | Die |
| Lonely | Crowded |
| Marry | Divorce |
| Minor | Major |
| Monotone | Varied |
| Moon | Sun |
| Moral | Immoral |
| Morning | Evening |
| Mountain | Valley |
| Near | Far |
| Obey | Disobey |
| Occupied | Vacant |
| On | Off |
| Overlook | Notice |
| Plentiful | Scarce |
| Prohibit | Allow |
| Punish | Reward |
| Question | Answer |
| Quiet | Loud |
| Remember | Forget |
| Replenish | Exhaust |
| Reply | Question |
| Retreat | Advance |
| Sharp | Dull |
| Some | Many |
| Still | Moving |
| Sturdy | Weak |
| Subtract | Add |
| Take | Give |
| Thirsty | Quenched |
| Abandon | Retain |
| Abolish | Establish |
| Absorb | Release |
| Abstain | Indulge |
| Accelerate | Decelerate |
| Accessible | Inaccessible |
| Acceptable | Unacceptable |
| Adequate | Inadequate |
| Admire | Despise |
| Agree | Disagree |
| Allow | Forbid |
| Always | Never |
| Amateur | Professional |
| Ambiguous | Clear |
| Ample | Meager |
| Anger | Calm |
| Announce | Withhold |
| Anticipate | Doubt |
| Anxious | Calm |
| Approve | Disapprove |
| Ask | Answer |
| Assemble | Disperse |
| Attractive | Repulsive |
| Available | Unavailable |
| Aware | Unaware |
| Balance | Imbalance |
| Barren | Fertile |
| Benefit | Harm |
| Better | Worse |
| Broad | Narrow |
| Careless | Careful |
| Celestial | Terrestrial |
| Center | Periphery |
| Certain | Uncertain |
| Child | Adult |
| Clear | Cloudy |
| Coarse | Fine |
| Complicated | Simple |
| Confident | Insecure |
| Content | Discontent |
| Continue | Cease |
| Cultivated | Uncultivated |
| Customary | Unusual |
| Dawn | Dusk |
| Decline | Accept |
| Defeat | Victory |
| Delicious | Tasteless |
| Delight | Disgust |
| Dense | Sparse |
| Descend | Ascend |
| Deteriorate | Improve |
| Dictator | Democrat |
| Dim | Bright |
| Appear | Disappear |
| Arrive | Depart |
| Assist | Hinder |
| Attain | Lose |
| Awkward | Graceful |
| Contain | Release |
| Cure | Sicken |
| Daring | Cautious |
| Delicate | Sturdy |
| Diminish | Increase |
| Discreet | Indiscreet |
| Eternal | Temporal |
| Excited | Bored |
| Expensive | Cheap |
| Fragile | Strong |
| Grow | Shrink |
| Honesty | Dishonesty |
| Intelligent | Unintelligent |
| Introduce | Withdraw |
| Legal | Illegal |
| Move | Stay |
| Perfect | Imperfect |
| Pleasant | Unpleasant |
| Present | Absent |
| Satisfied | Dissatisfied |
| Abnormal | Normal |
| Believe | Doubt |
| Busy | Idle |
| Common | Rare |
| Deficit | Surplus |
| Equal | Unequal |
| Forgive | Blame |
| Gain | Lose |
| Harmful | Beneficial |
| Hopeful | Hopeless |
| Invisible | Visible |
| Jealous | Content |
| Neglect | Attend |
| None | All |
| Progress | Regress |
| Resist | Submit |
| Rigid | Flexible |
| Scarcity | Abundance |
| Acquire | Lose |
| Clumsy | Skillful |
| Complain | Praise |
| Constrict | Expand |
| Detract | Enhance |
| Enlarge | Shrink |
| Fixed | Adjustable |
| Gratify | Displease |
| Hidden | Exposed |
| Huge | Tiny |
| Joyful | Sorrowful |
| Limit | Expand |
| Obscure | Clear |
| Relax | Tense |
| Shiny | Dull |
| Simplify | Complicate |
| Succeed | Fail |
| Tender | Tough |
| Trust | Distrust |
| Unusual | Usual |
By the way, synonyms are also important, here is the list. Unlocking IELTS Success:1339 Essential Words and Synonyms