I Set4

institution	the act of instituting
institutionalize	to subject to the deleterious effects of confinement in an institution
insubordinate	adj. disobedient; rebellious ;
insubordination	n. being insubordinate
insubstantial	adj. not solid or real; imaginary
insularity	n. state of being insular
insuperable	adj. (of difficulties) that cannot be overcome
insurgent	adj. in revolt; rebellious
insurmountable	adj. (of obstacles, difficulties, etc) that cannot be overcome
insurrection	n. sudden,usu violent, action taken by the population to try to remove the government
intangible	adj. that cannot be clearly or definitely understood or grasped; indefinable
integral	adj. ~ necessary for completeness
integrate	v. ~ sth (into sth); ~ A and B/~ A with B combine sth in such a way that it becomes fully a part of sth else
integrity	n. quality of being honest and morally upright
intellect	n. power of the mind to reason and acquire knowledge
intelligentsia	n. the intelligentsia those people within a community who areof high intelligence and concern themselves with mattersof culture, learning, etc; intellectuals as a class ;
inter	v. (fml ) put (a corpse) in a grave or tomb; bury
interdict	v. (esp law ) prohibit (an action); forbid the use of (sth) ;
interim	n. in the interimduring the time that comes between; meantime
interjection	n. word or phrase used as an exclamation (eg Oh!, Hurray! or For goodness sake!) , !!!
interloper	n. person who is present in a place where he does not belong, interferes in sth which is not his affair, etc; intruder
intermediary	n. ~ person who acts as a means of communication between two or more others
interminable	adj. going on too long, and usu therefore annoying or boring
intermittent	adj. continually stopping and then starting again; not constant
internecine	adj. causing destruction to both sides
interpolate	v. ~ sth (fml ) make (a remark, etc) which interrupts a conversation, speech, etc
interregnum	n. period when a state has no normal or lawful ruler, esp at the end of a sovereign's reign and before the appointment of a successor
interrogate	v. ~ sb question sb aggressively or closely and for a long time
intersperse	v. ~ B among/between/in/throughout A; ~ A with B vary sth by placing other things at irregular intervals among it
interstice	n. ~ (of/between/in sth) (fml ) very small gap or crack
intervene	v. (of time) come or be between
intimate	adj. ~ having or being a very close and friendly relationship
intimidate	v. ~ sb frighten sb (in order to make him do sth)
intolerant	adj. not tolerant
intoxicate	To make drunk.
intractable	adj. not easily controlled or dealt with; hard to manage
intransigence	state of stubborn; unwillingness to compromise
intrepid	adj. fearless; brave
intrigue	v. ~ (against sb) make and carry out secret plans or plots to do sth bad
intrinsic	adj. belonging naturally; existing within, not coming from outside
intrinsically	adv: He is not intrinsically bad
introspective	adj. inclined to introspect
introvert	n. person who is more interested in his own thoughts and feelings than in things outside himself, and is often shy and unwilling to speak or join in activities with others
intrude	v. ~ on/upon sb/sth; ~ (oneself/sth) into sth (esp fml ) put (oneself/sth) into a place or situation where one/it is unwelcome or unsuitable
intuition	n. (power of) understanding things (eg a situation, sb's feelings) immediately, without the need for conscious reasoning or study
inundate	v. ~ sth(fml ) cover sth with water by overflowing; flood
inured	accustomed to/adapted
invalid	adj. not properly based or able to be upheld by reasoning
invalidate	v. make invalid
invective	n. violent attack in words; abusive language
inveigh	v. ~ against sb/sth attack sb or sth violently in words
inveigle	v. ~ sb into sth/doing sth persuade sb to go somewhere or do sth by using flattery and deception
inverse	adj. reversed in position, direction or relation
invert	v. put upside down or in the opposite order, position or arrangement
inveterate	adj. (of bad feelings, habits, etc) that have lasted a long time and seem likely to continue
invidious	adj. likely to cause resentment or unpopularity
invincible	adj. too strong to be overcome or defeated
inviolable	adj. that must not be violated or dishonoured
invocation	=> invoke
invoke	v. use (sth) as a reason for one's action
invulnerable	adj. ~ that cannot be wounded, hurt or damaged by attack
iota	n. the Greek letter I, i I, i
irascible	adj. (of a person) easily made angry
irate	adj. angry
iridescent	adj. showing colours like those of the rainbow
irksome	adj. tiresome; annoying
ironic	adj. using or expressing irony; full of irony
irony	n. expression of one's meaning by saying the direct opposite of one's thoughts in order to be emphatic, amusing, sarcastic, etc
irreconcilable	adj. ~ (with sb/sth) (of people) that cannot be reconciled
irrefutable	adj. that cannot be proved false
irrelevant	adj. ~ not connected (with sth); not relevant (to sth)
irremediable	adj. that cannot be remedied or corrected
irreparable	adj. that cannot be put right, restored or repaired
irrepressible	adj. that cannot be held back or controlled
irreproachable	adj. freefrom blame or fault
irresolute	adj. feeling or showing uncertainty; hesitating ;
irretrievable	adj. that cannot be retrieved or remedied
irreverence	The quality showing or expressing a deficiency of veneration, especially for sacred things.
irreverent	adj. feeling or showing no respect for sacred things
irrevocable	adj. that cannot be changed or revoked; final
isotope	n. one of two or more forms of a chemical element with different atomic weight and different nuclear properties but the same chemical properties
isthmus	n. narrow strip of land joining two larger areas of land that would otherwise be separated by water
itinerant	adj. travelling from place to place
itinerary	n. plan for, or record of, a journey; route