Antonym and its rules:

Antonym and its rules:

It can be made using three ways:

  A.  Adding Prefix like un, in, dis, im, ir, il etc

      B.  Adding Suffix like full, less

      C.  Replacing by different words

A. a). Using prefix—un + root:

Word	Antonyms
Able	Unable
Acceptable	Unacceptable
Attend	Unattend
Aware	Unaware
Bearable	Unbearable
Believable	Unbelievable
Breakable	Unbreakable
Certain	Uncertain
Change	Unchange
Clean	Unclean
Civilized	Uncivilized
Comfortable	Uncomfortable
Common	Uncommon
Conscious	Unconscious
Decided	Undecided
Defeated	Undefeated
Educated	Uneducated
Even	Uneven
Employed	Unemployed
Favour	Unfavour
Favourable	Unfavourable
Finished	Unfinished
Fortunate	Unfortunate
Faithful	Unfaithful
Grateful	Ungrateful
Holy	Unholy
Happy	Unhappy
Important	Unimportant
Interested	Uninterested
Just	Unjust
Kind	Unkind
Known	Unknown
Limited	Unlimited
Natural	Unnatural
Necessary	Unnecessary
Official	Unofficial
Popular	Unpopular
Paid	Unpaid
Real	Unreal
Seen	Unseen
Suitable	Unsuitable
Usual	Unusual
Uttered	Unuttered
Well	Unwell

b). Prefix—in + root:

Word	Antonyms
Active	Inactive
Attractive	Inattractive
Correct	Incorrect
Capable	Incapable
Ability	Inability
Direct	Indirect
Edible	Inedible
Eligible	Ineligible
Finite	Infinite
Human	Inhuman
Justice	Injustice
Visible	Invisible
Valid	Invalid
Attentive	Inattentive

c.) . Prefix—im + root:

Word	Antonyms
Balance	Imbalance
Material	Immaterial
Mature	Immature
Memorial	Immemorial
Modest	Immodest
Partial	Impartial
Patient	Impatient
Perfect	Imperfect
Pious	Impious
Possible	Impossible
Mortal	Immortal
Proper	Improper
Purity	Impurity

d) . Prefix—ir + word:

Word	Antonyms
Rational	Irrational
Relevant	Irrelevant
Removable	Irremovable
Responsible	Irresponsible
Regular	Irregular

e) . Prefix—il + word:

Word	Antonyms
Legal	Illegal
Legible	Illegible
Literate	Illiterate
Liberal	Illiberal
Licit	Illicit
Logical	Illogical

B.)       Adding Suffix like full, less:

Word	Antonyms
Careful	Careless
Cheerful	Cheerless
Cloudful	Cloudless
Colourful	Colourless
Dutiful	Dutiless
Fearful	Fearless
Harmful	Harmless
Helpful	Helpless
Meaningful	Meaningless
Powerful	Powerless
Painful	Painless
Tasteful	Tasteless
Useful	Use less