invalidate
invalidate (v)
To render of no force or effect.
invaluable
invaluable (adj)
Exceedingly precious.
invariable
invariable (adj)
Unchangeable.
invasion
invasion (n)
Encroachment, as by an act of intrusion or trespass.
invective
invective (n)
An utterance intended to cast censure, or reproach.
inveigh
inveigh (v)
To utter vehement censure or invective.
inventive
inventive (adj)
Quick at contrivance.
inverse
inverse (adj)
Contrary in tendency or direction.
inversion
inversion (n)
Change of order so that the first shall become last and the last first.
invert
invert (v)
To turn inside out, upside down, or in opposite direction.
investigator
investigator (n)
One who investigates.
investor
investor (n)
One who invests money.
inveterate
inveterate (adj)
Habitual.
invidious
invidious (adj)
Showing or feeling envy.
invigorate
invigorate (v)
To animate.
invincible
invincible (adj)
Not to be conquered, subdued, or overcome.
inviolable
inviolable (adj)
Incapable of being injured or disturbed.
invoke
invoke (v)
To call on for assistance or protection.
involuntary
involuntary (adj)
Unwilling.
involution
involution (n)
Complication.
involve
involve (v)
To draw into entanglement, literally or figuratively.
invulnerable
invulnerable (adj)
That can not be wounded or hurt.
inwardly
inwardly (adv)
With no outward manifestation.
iota
iota (n)
A small or insignificant mark or part.
irascible
irascible (adj)
Prone to anger.
irate
irate (adj)
Moved to anger.
ire
ire (n)
Wrath.
iridescence
iridescence (n)
A many-colored appearance.
iridescent
iridescent (adj)
Exhibiting changing rainbow-colors due to the interference of the light.
irk
irk (v)
To afflict with pain, vexation, or fatigue.
irksome
irksome (adj)
Wearisome.
irony
irony (n)
Censure or ridicule under cover of praise or compliment.
irradiance
irradiance (n)
Luster.
irradiate
irradiate (v)
To render clear and intelligible.
irrational
irrational (adj)
Not possessed of reasoning powers or understanding.
irreducible
irreducible (adj)
That can not be lessened.
irrefragable
irrefragable (adj)
That can not be refuted or disproved.
irrefrangible
irrefrangible (adj)
That can not be broken or violated.
irrelevant
irrelevant (adj)
Inapplicable.
irreligious
irreligious (adj)
Indifferent or opposed to religion.
irreparable
irreparable (adj)
That can not be rectified or made amends for.
irrepressible
irrepressible (adj)
That can not be restrained or kept down.
irresistible
irresistible (adj)
That can not be successfully withstood or opposed.
irresponsible
irresponsible (adj)
Careless of or unable to meet responsibilities.
irreverence
irreverence (n)
The quality showing or expressing a deficiency of veneration, especially for sacred things.
irreverent
irreverent (adj)
Showing or expressing a deficiency of veneration, especially for sacred things.
irreverential
irreverential (adj)
Showing or expressing a deficiency of veneration, especially for sacred things.
irreversible
irreversible (adj)
Irrevocable.
irrigant
irrigant (adj)
Serving to water lands by artificial means.
irrigate
irrigate (v)
To water, as land, by ditches or other artificial means.
irritable
irritable (adj)
Showing impatience or ill temper on little provocation.
irritancy
irritancy (n)
The quality of producing vexation.
irritant
irritant (n)
A mechanical, chemical, or pathological agent of inflammation, pain, or tension.
irritate
irritate (v)
To excite ill temper or impatience in.
irruption
irruption (n)
Sudden invasion.
isle
isle (n)
An island.
islet
islet (n)
A little island.
isobar
isobar (n)
A line joining points at which the barometric pressure is the same at a specified moment.
isochronous
isochronous (adj)
Relating to or denoting equal intervals of time.
isolate
isolate (v)
To separate from others of its kind.
isothermal
isothermal (adj)
Having or marking equality of temperature.
itinerant
itinerant (adj)
Wandering.
itinerary
itinerary (n)
A detailed account or diary of a journey.
itinerate
itinerate (v)
To wander from place to place.
jargon
jargon (n)
Confused, unintelligible speech or highly technical speech.
jaundice
jaundice (n)
A morbid condition, due to obstructed excretion of bile or characterized by yellowing of the skin.
jeopardize
jeopardize (v)
To imperil.
Jingo
Jingo (n)
One of a party in Great Britain in favor of spirited and demonstrative foreign policy.
jocose
jocose (adj)
Done or made in jest.
jocular
jocular (adj)
Inclined to joke.
joggle
joggle (n)
A sudden irregular shake or a push causing such a shake.
journalize
journalize (v)
To keep a diary.
jovial
jovial (adj)
Merry.
jubilation
jubilation (n)
Exultation.
judgment
judgment (n)
The faculty by the exercise of which a deliberate conclusion is reached.
judicature
judicature (n)
Distribution and administration of justice by trial and judgment.
judicial
judicial (adj)
Pertaining to the administration of justice.
judiciary
judiciary (n)
That department of government which administers the law relating to civil and criminal justice.
judicious
judicious (adj)
Prudent.
juggle
juggle (v)
To play tricks of sleight of hand.
jugglery
jugglery (n)
The art or practice of sleight of hand.
jugular
jugular (adj)
Pertaining to the throat.
juicy
juicy (adj)
Succulent.
junction
junction (n)
The condition of being joined.
juncture
juncture (n)
An articulation, joint, or seam.
junta
junta (n)
A council or assembly that deliberates in secret upon the affairs of government.
juridical
juridical (adj)
Assumed by law to exist.
jurisdiction
jurisdiction (n)
Lawful power or right to exercise official authority.
jurisprudence
jurisprudence (n)
The science of rights in accordance with positive law.
juror
juror (n)
One who serves on a jury or is sworn in for jury duty in a court of justice.
joust
joust (v)
To engage in a tilt with lances on horseback.
justification
justification (n)
Vindication.
juvenile
juvenile (adj)
Characteristic of youth.
juxtapose
juxtapose (v)
To place close together.
keepsake
keepsake (n)
Anything kept or given to be kept for the sake of the giver.
kerchief
kerchief (n)
A square of linen, silk, or other material, used as a covering for the head or neck.
kernel
kernel (n)
A grain or seed.
kiln
kiln (n)
An oven or furnace for baking, burning, or drying industrial products.
kiloliter
kiloliter (n)
One thousand liters.
kilometer
kilometer (n)
A length of 1,000 meters.
kilowatt
kilowatt (n)
One thousand watts.
kimono
kimono (n)
A loose robe, fastening with a sash, the principal outer garment in Japan.
kind-hearted
kind-hearted (adj)
Having a kind and sympathetic nature.
kingling
kingling (n)
A petty king.
kingship
kingship (n)
Royal state.
kinsfolk
kinsfolk (n)
pl. Relatives.
knavery
knavery (n)
Deceitfulness in dealing.
knead
knead (v)
To mix and work into a homogeneous mass, especially with the hands.
knickknack
knickknack (n)
A small article, more for ornament that use.
knight errant
knight errant (n)
One of the wandering knights who in the middle ages went forth in search of adventure.
knighthood
knighthood (n)
Chivalry.
laborious
laborious (adj)
Toilsome.
labyrinth
labyrinth (n)
A maze.
lacerate
lacerate (v)
To tear rudely or raggedly.
lackadaisical
lackadaisical (adj)
Listless.
lactation
lactation (n)
The secretion of milk.
lacteal
lacteal (adj)
Milky.
lactic
lactic (adj)
Pertaining to milk.
laddie
laddie (n)
A lad.
ladle
ladle (n)
A cup-shaped vessel with a long handle, intended for dipping up and pouring liquids.
laggard
laggard (adj)
Falling behind.
landholder
landholder (n)
Landowner.
landlord
landlord (n)
A man who owns and lets a tenement or tenements.
landmark
landmark (n)
A familiar object in the landscape serving as a guide to an area otherwise easily lost track of.
landscape
landscape (n)
A rural view, especially one of picturesque effect, as seen from a distance or an elevation.
languid
languid (adj)
Relaxed.
languor
languor (n)
Lassitude of body or depression.
lapse
lapse (n)
A slight deviation from what is right, proper, or just.
lascivious
lascivious (adj)
Lustful.
lassie
lassie (n)
A little lass.
latent
latent (adj)
Dormant.
latency
latency (n)
The state of being dormant.
later
later (adv)
At a subsequent time.
lateral
lateral (adj)
Directed toward the side.
latish
latish (adj)
Rather late.
lattice
lattice (n)
Openwork of metal or wood, formed by crossing or interlacing strips or bars.
laud
laud (v)
To praise in words or song.
laudable
laudable (adj)
Praiseworthy.
laudation
laudation (n)
High praise.
laudatory
laudatory (adj)
Pertaining to, expressing, or containing praise.
laundress
laundress (n)
Washerwoman.
laureate
laureate (adj)
Crowned with laurel, as a mark of distinction.
lave
lave (v)
To wash or bathe.
lawgiver
lawgiver (n)
A legislator.
lawmaker
lawmaker (n)
A legislator.
lax
lax (adj)
Not stringent or energetic.
laxative
laxative (adj)
Having power to open or loosen the bowels.
lea
lea (n)
A field.
leaflet
leaflet (n)
A little leaf or a booklet.
leaven
leaven (v)
To make light by fermentation, as dough.
leeward
leeward (n)
That side or direction toward which the wind blows.
left-handed
left-handed (adj)
Using the left hand or arm more dexterously than the right.
legacy
legacy (n)
A bequest.
legalize
legalize (v)
To give the authority of law to.
legging
legging (n)
A covering for the leg.
legible
legible (adj)
That may be read with ease.
legionary
legionary (n)
A member of an ancient Roman legion or of the modern French Legion of Honor.
legislate
legislate (v)
To make or enact a law or laws.
legislative
legislative (adj)
That makes or enacts laws.
legislator
legislator (n)
A lawgiver.
legitimacy
legitimacy (n)
Accordance with law.
legitimate
legitimate (adj)
Having the sanction of law or established custom.
leisure
leisure (n)
Spare time.
leniency
leniency (n)
Forbearance.
lenient
lenient (adj)
Not harsh.
leonine
leonine (adj)
Like a lion.
lethargy
lethargy (n)
Prolonged sluggishness of body or mind.
levee
levee (n)
An embankment beside a river or stream or an arm of the sea, to prevent overflow.
lever
lever (n)
That which exerts, or through which one may exert great power.
leviathan
leviathan (n)
Any large animal, as a whale.
levity
levity (n)
Frivolity.
levy
levy (v)
To impose and collect by force or threat of force.
lewd
lewd (adj)
Characterized by lust or lasciviousness.
lexicographer
lexicographer (n)
One who makes dictionaries.
lexicography
lexicography (n)
The making of dictionaries.
lexicon
lexicon (n)
A dictionary.
liable
liable (adj)
Justly or legally responsible.
libel
libel (n)
Defamation.
liberalism
liberalism (n)
Opposition to conservatism.
liberate
liberate (v)
To set free or release from bondage.
licentious
licentious (adj)
Wanton.
licit
licit (adj)
Lawful.
liege
liege (adj)
Sovereign.
lien
lien (n)
A legal claim or hold on property, as security for a debt or charge.
lieu
lieu (n)
Stead.
lifelike
lifelike (adj)
Realistic.
lifelong
lifelong (adj)
Lasting or continuous through life.
lifetime
lifetime (n)
The time that life continues.
ligament
ligament (n)
That which binds objects together.
ligature
ligature (n)
Anything that constricts, or serves for binding or tying.
light-hearted
light-hearted (adj)
Free from care.
ligneous
ligneous (adj)
Having the texture of appearance of wood.
likelihood
likelihood (n)
A probability.
likely
likely (adj)
Plausible.
liking
liking (n)
Fondness.