iridescent ADJ. /虹彩的/exhibiting rainbowlike colors. She admired the iridescent hues of the oil that floated on the
surface of the water.
irksome ADJ. /令人厌恶的;冗长乏味的/annoying; tedious. He found working on the assembly line irksome because of the
monotony of the operation he had to perform. irk, V.
ironic ADJ. /讽刺性的/resulting in an unexpected and contrary outcome. It is ironic that his success came when he least
wanted it.
irony N. /反话;讽刺/hidden sarcasm or satire; use of words that seem to mean the opposite of what they actually mean.
Gradually his listeners began to realize that the excessive praise he was lavishing on his opponent was actually irony, he was in fact ridiculing the poor fool.
irrational ADJ. /无理的，缺乏逻辑的;不理智的/illogical; lacking reason; insane. Many people have such an irrational fear of
snakes that they panic at the sight of a harmless g arter snake.
irreconcilable ADJ. /不相容的;矛盾的/incompatible; not able to be resolved. Because the separated couple were
irreconcilable, the marriage counselor recommended a divorce.
irrefutable ADJ. /不可否认的;不能驳倒的/indisputable; incontrovertible; undeniable. No m atter how hard I tried to find a
good comeback for her argument, I couldn't think of one: her logic was irrefutable.
irrelevant ADJ. /不相关的，不照号的/not applicable; unrelated. No matter how irrelevant the patient's mumblings may
seem, they give us some indications of what he has on his mind.
irremediable ADJ. /不能挽回的;不能治愈的/incurable; uncorrectable. The error she made was irremediable; she could
see no way to repair it.
irreparable ADJ. /不能弥补的，不能修复的;无可挽救的/not able to be corrected or repaired. Your apology cannot atone for
the irreparable damage you have done to her reputation.
irrepressible ADJ. /压不住的，抑制不住的/unable to be restrained or held back. My friend Kitty's curiosity was
irrepressible: she poked her nose into everybody's business and just laughed when I warned her that curiosity killed the cat.
irreproachable ADJ. /无可指责的;没有缺点的/blameless; impeccable. Homer's conduct at the office party was
irreproachable; even Marge didn't have anything bad to say about how he behaved.
irresolute ADJ. /犹豫不决的/uncertain how to act; weak. Once you have made your decision, don't waver; a leader
should never appear irresolute.
irretrievable ADJ. /不能复原的;不能挽回的/impossible to recover or regain; irreparable. The left fielder tried to retrieve
the ball, but it flew over the fence, bounced off a wall, and fell into the sewer: it was irretrievable.
irreverence N. /不尊敬的/lack of proper respect. Some audience members were amused by the irreverence of the
comedian's jokes about the Pope; others felt offended by his lack of respect for their faith. irreverent, ADJ.
irrevocable ADJ. /不能取消的;不能变更的/unalterable; irreversible. As Sue dropped the "Dear John" letter into the
mailbox, she suddenly had second thoughts and wanted to take it back, but she could not: her action was irrevocable.
itinerant ADJ. /巡回的/wandering; traveling. He was an itinerant peddler and traveled through Pennsylvania and
Virginia selling his wares. also N.
itinerary N. /旅行计划;路线/plan of a trip. Disliking sudden changes in plans when she traveled abroad, Ethel refused
to make any alterations in her itinerary.
jabber V. /快速的说，含混不清的说/chatter rapidly or unintelligibly. Why does the fellow insist on jabbering away in French
when I can't understand a word he says?
jaded ADJ. /疲倦的/fatigued; surfeited. He looked for exotic foods to stimulate his jaded appetite. jargon N. /黑话，行话，胡话/language used by a special group; technical terminology; gibberish. The computer salesmen
at the store used a jargon of their own that we simply couldn't follow; we had no idea what they were jabbering about.
jaundiced ADJ. /患黄疸病的;有偏见的/prejudiced (envious, hostile or resentful); yellowed. Because Sue disliked Carolyn,she looked at Carolyn's paintings with a jaundiced eye, calling them formless smears. Newborn infants afflicted with jaundice look slightly yellow: they have jaundiced skin.
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