rance or aspect]

impossible contingency

impotent desperation

impoverished age

impracticable obstinacy

impregnable fortress

impressionistic stroke

imprisoning limitations

improbable conjecture

impromptu utterance

improvising powers

imprudent indebtedness

impudent knowingness

impulsive gratitude

inaccessible dignity

inadequate appreciation

inadmissible expression

inadvertent remark

inalienable right

inanimate existence

inapposite blandness [inapposite = inappropriate or misapplied nature]

inaptly designated

inarticulate lispings

inaugural discourse

inborn refinement

inbred taste

incalculable mischief

incarnate hate

incendiary opinions

incessant volume

incidental duty

incipient fancy

incisive critic

incoherent loquacity [loquacity = very talkative]

incommunicable gift

incomparable excellence

incompletely apprehended

inconceivable absurdity

incongruous contrast

inconsiderable trifle

inconsistent conduct

inconsolable cares

incontestable inference

incontrovertible proof

incorrigible merriment

incorruptible constancy

increasing clamor

incredible swiftness

indecent saturnalia [saturnalia = unrestrained revelry; an orgy]

indecorously amused

indefatigable diligence [indefatigable = tireless]

indefeasible title [indefeasible = cannot be annulled]

indefinable reluctance

indefinite yearning

indelible obligation

indelicate impetuosity

indented outline

independent research

indescribably lugubriou [lugubriou = exaggerated gloom]

indestructible atoms

indeterminable value

indifferent promise

indigenous growth

indignant denunciation

indirect interrogation

indiscriminate censure

indispensable requisites

indisputable chronicler

indissoluble compact

indistinct association

individual valor

indivisible aspects

indolent neglect

indomitable pride

indubitable signs

indulgent construction

indwelling delight

ineffable disdain

ineffaceable incongruity [ineffaceable = indelible]

ineffectual blandishment

ineradicable coquetry

inestimable honor

inevitable corollary

inexcusable laughter

inexhaustible abundance

inexorable authority [inexorable = incapable of being persuaded]

inexplicable reluctance

inexpressible benignity

inextricable confusion

infallible judgment

infamous pretense

infantile