im

in

un

+

–

+

–

+

–

Patient

Impatient

Secure

Insecure

Important

Unimportant

Moral

Immoral

Accurate

Inaccurate

Able

Unable

Balance

Imbalance

Admissible

Inadmissible

Acceptable

Unacceptable

Mature

Immature

(Advertently)

Inadvertently

Accustomed

Unaccustomed

Partial

Impartial

Animate

Inanimate

Answered

Unanswered

Penetrable

Impenetrable

Different

Indifferent

Anticipated

Unanticipated

Perfect

Imperfect

Calculable

Incalculable

Button

Unbutton

Polite

Impolite

Capable

Incapable

Called for

Uncalled for

Mortal

Immortal

Coherent

Incoherent

Aware

Unaware

Possible

Impossible

Comparable

Incomparable

Bearable

Unbearable

Potent

Impotent

Compatible

Incompatible

Comfortable

Uncomfortable

Practical

Impractical

Competent

Incompetent

Reasonable

Unreasonable

Proper

Improper

Complete

Incomplete

Certain

Uncertain

In

Comprehensible

Incomprehensible

Conscious

Unconscious

Equality

Inequality

Conclusive

Inconclusive

Common

Uncommon

(Evitable)

Inevitable

Considerate

Inconsiderate

Concerned

Unconcerned

Expensive

Inexpensive

Consistency

Inconsistency

Confirmed

Unconfirmed

Explicable

Inexplicable

Convenience

Inconvenience

Damaged

Undamaged

Explicit

Inexplicit

Correct

Incorrect

Decided

Undecided

Famous

Infamous

Curable

Incurable

Do

Undo

Flammable

Inflammable

Decency

Indecency

Easy

Uneasy

Formal

Informal

Decisive

Indecisive

Employed

Unemployed

Humane

Inhumane

Definite

Indefinite

Ending

Unending

Sane

Insane

Dependence

Independence

Even

Uneven

(Satiable)

Insatiable

Describable

Indescribable

Expected

Unexpected

Tangible

Intangible

Direct

Indirect

Fair

Unfair

Valid

Invalid

un

Familiar

Unfamiliar

Discretion

Indiscretion

Wrap

Unwrap

Fit

Unfit

Effective

Ineffective

Veil

Unveil

Tie

Untie