inveterate :: deep-rooted; habitual invidious :: designed to create ill will or envy invincible :: unconquerable inviolable :: secure from corruption, attack, or violation; unassailable invocation :: prayer for help; calling upon as reference or support invoke :: call upon; ask for invulnerable :: incapable of injury iota :: very small quantity irascible :: irritable; easily angered irate :: angry iridescent :: exhibiting rainbowlike colors irksome :: annoying; tedious ironic :: occurring in an unexpected and contrary manner irony :: hidden sarcasm or satire; use of words that seem to mean the opposite of what they actually mean irreconcilable :: incompatible; not able to be resolved irrefutable :: indisputable; incontrovertible; undeniable irrelevant :: not applicable; unrelated irremediable :: incurable; uncorrectable irreparable :: not able to be corrected or repaired irrepressible :: unable to be restrained or held back irreproachable :: blameless; impeccable irresolute :: uncertain how to act; weak irretrievable :: impossible to recover or regain; irreparable irreverence :: lack of proper respect irrevocable :: unalterable; irreversible isotope :: varying form of an element isthmus :: narrow neck of land connecting two larger bodies of land itinerary :: plan of a trip jabber :: chatter rapidly or unintelligibly jaded :: fatigued; surfeited jargon :: language used by special group; technical terminology; gibberish jaundiced :: *prejudiced* (envious, hostile, or resentful); yellowed jaunt :: trip; short journey jaunty :: lighthearted; animated; easy and carefree jeopardize :: endanger; imperil; put at risk jettison :: throw overboard jibe :: agree; be in harmony with jingoist :: extremely aggressive and militant patriot; warlike chauvinist jocose :: given to joking jocular :: said or done in jest jocund :: merry jollity :: gaiety; cheerfulness jostle :: shove; bump; to push roughly or hastily jovial :: good-natured; merry jubilation :: rejoicing judicious :: sound in judgment; wise juggernaut :: irresistible crushing force juncture :: crisis; joining point junket :: trip, especially one taken for pleasure by an official at public expense junta :: group of persons joined in political intrigue; cabal jurisprudence :: science of law justification :: good or just reason; defense; excuse juxtapose :: place side by side kaleidoscope :: tube in which patterns made by the reflection in mirrors of colored pieces of glass, etc., produce interesting symmetrical effects ken :: range of knowledge kernel :: central or vital part; whole seed; (as of corn) killjoy :: grouch; spoilsport

kindle :: start a fire; inspire kindred :: related; similar in nature or character kinetic :: producing motion kismet :: fate kleptomaniac :: person who has a compulsive desire to steal knave :: untrustworthy person; rogue; scoundrel knead :: mix; work dough knell :: tolling of a bell, especially to indicate a funeral, disaster, etc.; sound of the funeral bell knit :: contract into wrinkles; grow together, as a broken bone knoll :: little, round hill knotty :: intricate; difficult; tangled kudos :: honor; glory; praise labile :: likely to change; unstable laborious :: demanding much work or care; tedious labyrinth :: maze laceration :: torn, ragged wound lachrymose :: producing tears lackadaisical :: lacking purpose or zest; halfhearted; languid lackluster :: dull laconic :: brief and to the point laggard :: slow; sluggish