advanced

Vocabulary: I

23 words starting with I at the advanced level

Illustrious

Well known, respected, and admired for past achievements.

Eminentdistinguishedacclaimed

Impecunious

Having little or no money.

Pennilesspoorindigent

Impede

To delay or prevent (someone or something) by obstructing them.

Hinderobstructslow

Inadvertent

Not resulting from or achieved through deliberate planning.

Unintentionalaccidentalunpremeditated

Incessant

(Of something regarded as unpleasant) continuing without pause or interruption.

Ceaselessunceasingconstant

Incite

To encourage or stir up (violent or unlawful behavior).

Stir upkindleignite

Incongruous

Not in harmony or keeping with the surroundings or other aspects of something.

Out of placeunsuitableinappropriate

Incredulous

(Of a person or their manner) unwilling or unable to believe something.

Disbelievingskepticalsuspicious

Indefatigable

(Of a person or their efforts) persisting tirelessly.

Tirelessuntiringunflagging

Indefinite

Lasting for an unknown or unstated length of time.

Undeterminedundefinedunspecified

Indigent

Poor; needy.

Poorimpecuniousdestitute

Infamous

Well known for some bad quality or deed.

Notoriousdisreputableill-famed

Ingenuous

(Of a person or action) innocent and unsuspecting.

Naiveinnocentsimple

Inhibit

To hinder, restrain, or prevent (an action or process).

Impedeobstructslow

Iniquitous

Grossly unfair and morally wrong.

Wickedsinfulevil

Insightful

Having or showing an accurate and deep understanding; perceptive.

Perceptiveastuteshrewd

Insipid

Lacking flavor. (Metaphorical: lacking vigor or interest).

Tastelessblandweak

Instigate

To bring about or initiate (an action or event).

Inciteencourageurge

Insulate

To protect (something) by interposing material that prevents the loss of heat or the intrusion of sound; protect from unpleasant influences.

Protectshieldisolate

Interminable

Endless (often used hyperbolically).

Never-endingceaselessincessant

Intractable

Hard to control or deal with.

Unmanageableuncontrollabledifficult

Iota

An extremely small amount.

Bitspeckmite

Isolate

To cause (a person or place) to be or remain alone or apart from others.

Segregatedetachsequester

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