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undefined, object
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inimical adj
iniquity n
Gross wrong or injustice
initiate v
To perform the first act or rite
inject v
To introduce, as a fluid, by injection
injunction n
inkling n
A hint
inland adj
Remote from the sea
inlet n
A small body of water leading into a larger
inmost adj
Deepest within
innocuous adj
innovate v
To introduce or strive to introduce new things
innuendo n
innumerable adj
inoffensive adj
Causing nothing displeasing or disturbing
inopportune adj
Unsuitable or inconvenient, especially as to time
inquire v
To ask information about
inquisition n
A court or tribunal for examination and punishment of heretics
inquisitive adj
Given to questioning, especially out of curiosity
inquisitor n
One who makes an investigation
inroad n
Forcible encroachment or trespass
insatiable adj
That desires or craves immoderately or unappeasably
inscribe v
To enter in a book, or on a list, roll, or document, by writing
inscrutable adj
Impenetrably mysterious or profound
insecure adj
Not assured of safety
insensible adj
insentient adj
Lacking the power of feeling or perceiving
inseparable adj
That can not be separated
insidious adj
Working ill by slow and stealthy means
insight n
Intellectual discernment
insignificance n
Lack of import or of importance
insignificant adj
Without importance, force, or influence
insinuate v
To imply
insipid adj
insistence n
insistent adj
insolence n
Pride or haughtiness exhibited in contemptuous and overbearing treatment of others
insolent adj
insomnia n
inspector n
An official appointed to examine or oversee any matter of public interest or importance
instance n
A single occurrence or happening of a given kind
instant n
A very brief portion of time
instantaneous adj
Done without perceptible lapse of time
instigate v
To provoke
instigator n
One who incites to evil
instill v
To infuse
instructive adj
Conveying knowledge
insufficiency n
insufficient adj
Inadequate for some need, purpose, or use
insular adj
Pertaining to an island
insulate v
To place in a detached state or situation
insuperable adj
insuppressible adj
Incapable of being concealed
insurgence n
insurgent n
One who takes part in forcible opposition to the constituted authorities of a place
insurrection n
The state of being in active resistance to authority
intangible adj
Not perceptible to the touch
integrity n
Uprightness of character and soundness of moral principle
intellect n
The faculty of perception or thought
intellectual adj
Characterized by intelligence
intelligence n
Capacity to know or understand
intelligible adj
intemperance n
Immoderate action or indulgence, as of the appetites
intension n
The act of stringing or stretching, or state of being strained
intensive adj
Adding emphasis or force
intention n
That upon which the mind is set
interact v
To act reciprocally
intercede v
To mediate between persons
intercept v
To interrupt the course of
intercession n
Entreaty in behalf of others
intercessor n
A mediator
interdict n
Authoritative act of prohibition
interim n
Time between acts or periods
interlocutor n
One who takes part in a conversation or oral discussion
interlude n
An action or event considered as coming between others of greater length
intermediate adj
Being in a middle place or degree or between extremes
interminable adj
Having no limit or end
intermission n
A recess
intermit v
To cause to cease temporarily
intermittent adj
A temporary discontinuance
interpolation n
Verbal interference
interpose v
To come between other things or persons
interposition n
A coming between
interpreter n
A person who makes intelligible the speech of a foreigner by oral translation
interrogate v
To examine formally by questioning
interrogative adj
Having the nature or form of a question
interrogatory n
A question or inquiry
interrupt v
To stop while in progress
intersect v
To cut through or into so as to divide
intervale n
A low tract of land between hills, especially along a river
intervene v
To interfere for some end
intestacy n
The condition resulting from one's dying not having made a valid will
intestate adj
Not having made a valid will
intestine n
That part of the digestive tube below or behind the stomach, extending to the anus
intimacy n
Close or confidential friendship
intimidate v
To cause to become frightened
intolerable adj
intolerance n
Inability or unwillingness to bear or endure
intolerant adj
intoxicant n
Anything that unduly exhilarates or excites
intoxicate v
To make drunk
intracellular adj
Occurring or situated within a cell
intramural adj
Situated within the walls of a city
intrepid adj
Fearless and bold
intricacy n
intricate adj
Difficult to follow or understand
intrigue n
A plot or scheme, usually complicated and intended to accomplish something by secret ways
intrinsic adj
introductory adj
introgression n
intromit v
To insert
introspect v
To look into
introspection n
The act of observing and analyzing one's own thoughts and feelings
introversion n
The act of turning or directing inward, physically or mentally
introvert v
To turn within
intrude v
To come in without leave or license
intrusion n
The act of entering without warrant or invitation; encroachment
intuition n
Instinctive knowledge or feeling
inundate v
To fill with an overflowing abundance
inundation n
inure v
To harden or toughen by use, exercise, or exposure
invalid adj
Having no force, weight, or cogency
invalid n
One who is disabled by illness or injury
invalidate v
To render of no force or effect
invaluable adj
Exceedingly precious
invariable adj
invasion n
Encroachment, as by an act of intrusion or trespass
invective n
An utterance intended to cast censure, or reproach
inveigh v
To utter vehement censure or invective
inventive adj
Quick at contrivance
inverse adj
Contrary in tendency or direction
inversion n
Change of order so that the first shall become last and the last first
invert v
To turn inside out, upside down, or in opposite direction
investigator n
One who investigates
investor n
One who invests money
inveterate adj
invidious adj
Showing or feeling envy
invigorate v
To animate
invincible adj
Not to be conquered, subdued, or overcome
inviolable adj
Incapable of being injured or disturbed
invoke v
To call on for assistance or protection
involuntary adj
involution n
involve v
To draw into entanglement, literally or figuratively
invulnerable adj
That can not be wounded or hurt
inwardly adv
With no outward manifestation
iota n
A small or insignificant mark or part
irascible adj
Prone to anger
irate adj
Moved to anger
ire n
iridescence n
A many-colored appearance
iridescent adj
Exhibiting changing rainbow-colors due to the interference of the light
irk v
To afflict with pain, vexation, or fatigue
irksome adj
irony n
Censure or ridicule under cover of praise or compliment
irradiance n
irradiate v
To render clear and intelligible
irrational adj
Not possessed of reasoning powers or understanding
irreducible adj
That can not be lessened
irrefragable adj
That can not be refuted or disproved
irrefrangible adj
That can not be broken or violated
irrelevant adj
irreligious adj
Indifferent or opposed to religion
irreparable adj
That can not be rectified or made amends for
irrepressible adj
That can not be restrained or kept down
irresistible adj
That can not be successfully withstood or opposed
irresponsible adj
Careless of or unable to meet responsibilities
irreverence n
The quality showing or expressing a deficiency of veneration, especially for sacred things
irreverent adj
Showing or expressing a deficiency of veneration, especially for sacred things
irreverential adj
Showing or expressing a deficiency of veneration, especially for sacred things
irreversible adj
irrigant adj
Serving to water lands by artificial means
irrigate v
To water, as land, by ditches or other artificial means
irritable adj
Showing impatience or ill temper on little provocation
irritancy n
The quality of producing vexation
irritant n
A mechanical, chemical, or pathological agent of inflammation, pain, or tension
irritate v
To excite ill temper or impatience in
irruption n
Sudden invasion
isle n
An island
islet n
A little island
isobar n
A line joining points at which the barometric pressure is the same at a specified moment
isochronous adj
Relating to or denoting equal intervals of time
isolate v
To separate from others of its kind
isothermal adj
Having or marking equality of temperature
itinerant adj
itinerary n
A detailed account or diary of a journey
itinerate v
To wander from place to place
jargon n
Confused, unintelligible speech or highly technical speech
jaundice n
A morbid condition, due to obstructed excretion of bile or characterized by yellowing of the skin
jeopardize v
To imperil
Jingo n
One of a party in Great Britain in favor of spirited and demonstrative foreign policy
jocose adj
Done or made in jest
jocular adj
Inclined to joke
joggle n
A sudden irregular shake or a push causing such a shake
journalize v
To keep a diary
jovial adj
jubilation n
judgment n
The faculty by the exercise of which a deliberate conclusion is reached
judicature n
Distribution and administration of justice by trial and judgment
judicial adj
Pertaining to the administration of justice
judiciary n
That department of government which administers the law relating to civil and criminal
judicious adj
juggle v
To play tricks of sleight of hand
jugglery n
The art or practice of sleight of hand
jugular adj
Pertaining to the throat
juicy adj
junction n
The condition of being joined
juncture n
An articulation, joint, or seam
junta n
A council or assembly that deliberates in secret upon the affairs of government
juridical adj
Assumed by law to exist
jurisdiction n
Lawful power or right to exercise official authority
jurisprudence n
The science of rights in accordance with positive law
juror n
One who serves on a jury or is sworn in for jury duty in a court of justice
joust v
To engage in a tilt with lances on horseback
justification n
juvenile adj
Characteristic of youth
juxtapose v
To place close together
keepsake n
Anything kept or given to be kept for the sake of the giver
kerchief n
A square of linen, silk, or other material, used as a covering for the head or neck
kernel n
A grain or seed
kiln n
An oven or furnace for baking, burning, or drying industrial products
kiloliter n
One thousand liters
kilometer n
A length of 1,000 meters
kilowatt n
One thousand watts
kimono n
A loose robe, fastening with a sash, the principal outer garment in Japan
kind-hearted adj
Having a kind and sympathetic nature
kingling n
A petty king
kingship n
Royal state
kinsfolk n
Pl Relatives
knavery n
Deceitfulness in dealing
knead v
To mix and work into a homogeneous mass, especially with the hands
knickknack n
A small article, more for ornament that use
knight errant n
One of the wandering knights who in the middle ages went forth in search of adventure
knighthood n

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