Icon :---> figure, image.
Idolatry :---> worship of idol.
Ingenious :---> clever, crafty.
Ignorance :---> blindness, inexperience.
Imbroglio :---> complicated situation.
Immutable :---> unchangeable.
Impair :---> injure, hurt.
impassive :---> without feeling
Impede :---> hinder, block.
Impermeable :---> impervious.
imperturbable :---> calm, placid
Impervious :---> impenetrable,
Implode :---> burst inward.
Impugn :---> challenge, attacked with words
Inadvertently :---> unintentionally, carelessly.
Inalienable :---> not transferable.
Inarticulate :---> incoherent, stutter, not clear.
Incentive :---> merit, provocation, spur
Inchoate :---> recently begun, rudimentary
Incompatible Choices :---> Indifferent, Faulty.
Incongruity :---> lack of harmony, absurdity.
Inconsequential :---> insignificant, unimportant.
*Incontinent :---> unrestrained, without self control.
incorporate :---> combine, unite
Incorrigible :---> unreformable, unchangeable.
Indeterminate :---> uncertain, not clearly fixed.
Indigence :---> poverty.
*Indigenous :---> native.
indolent :---> lazy
Inept :---> absurd, silly.
Inert :---> passive.
Ingenuous :---> naïve and trusting, young
Inherent :---> firmly established by nature or habit.
Innocuous :---> harmless.
Innovation :---> make changes or introduce new things.
Insensible :---> unconscious, unresponsive.
*Insinuate :---> hint, imply, creep in.
insipid :---> lacking in flavor
Instigate :---> incite.
Insularity :---> narrow-mindedness, isolation.
Interdict :---> prohibit
Intermittent :---> externally stopping and then starting.
Intractable :---> unruly, stubborn, unyielding.
Intransigence :---> refusal of any compromise
Intrepid :---> brave, courageous.
*Inundate :---> overwhelm, flood, submerge.
*Inured :---> accustomed, hardened.
Invective :---> abuse.
Irascible :---> irritable, easily angered.
Irk :---> annoy, bother, tire.
Irradiate :---> illuminate, radiate light
Irresolute :---> uncertain how to act.
Itinerary :---> plan of a trip.