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Vocabulary Study Online by Level
Vocabulary Study Online
Vocabulary Study Online By Level (VSOBL) is a Fast, Reliable, and Handy tool to prepare English exam vocabulary. (Available for all VIP accounts: US$2/Month). It has built-in word lists: 6000 IELTS words, 6000 TOEFL words, 5000 GRE words, and 3000 SAT words. You can load them by level with one click.
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inscrutable
Detail    speak
a. impenetrable; not readily understood; mysterious
Experienced poker players try to keep their expressions inscrutable, hiding their reactions to the cards behind a so-called 'poker face.'
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insipid
Detail    speak
a. lacking flavor or zest; not tasty; dull
Flat prose and flat ginger ale are equally insipid: both lack sparkle.
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insistence
Detail    speak
n. continual and persistent demands
Insistence on better working conditions by the union has resulted in fewer employee absences.
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instantaneous
Detail    speak
a. instant; immediate; occurring with no delay
Well, might the velocity of light be called instantaneous by the early observers?
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instigate
Detail    speak
v. goad or urge forward; provoke; incite
Rumors of police corruption led the mayor to instigate an investigation into the department's activities.
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instill
Detail    speak
v. drop in; pour in drop by drop; impart gradually; infuse slowly; cause to be imbibed
I wanted Janet to trust me so I could instill new habits into her life.
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insufficient
Detail    speak
a. of a quantity not able to fulfill a need or requirement
Our clothing was insufficient to protect us from the severe cold.
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intangible
Detail    speak
a. not able to be perceived by senses, as touch; vague
The long-term intangible benefits of the Health Corps are immeasurable but just as real.
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integrate
Detail    speak
v. make whole; combine; make into one unit
She tried to integrate all their activities into one program.
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interminable
Detail    speak
a. being or seeming to be without an end; endless; tedious; continual
Although his speech lasted for only twenty minutes, it seemed interminable to his bored audience.
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intermittent
Detail    speak
a. periodic; on and off; stopping and starting at intervals
The outdoor wedding reception had to be moved indoors to avoid the intermittent showers that fell on and off all afternoon.
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intestinal
Detail    speak
a. of or pertaining to an animal's intestine, a portion of the alimentary canal extending from the stomach to the anus
Boche had some intestinal problems, so the vet gave him medicine.
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intrepid
Detail    speak
a. fearless; indicating or springing from courage
For her intrepid conduct nursing, the wounded during the war, Florence Nightingale was honored by Queen Victoria.
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introspective
Detail    speak
a. looking within oneself; thoughtful about oneself; studying or exhibiting one's own internal state
A renowned Tibetan lama pointed out that Westerners think people in the East tend to be more introspective and less concerned with material success.
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invalidate
Detail    speak
v. make invalid; nullify; destroy
The relatives who received little or nothing sought to invalidate the will by claiming that the deceased had not been in his right mind when he had signed the document.
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irreparable
Detail    speak
a. not able to be corrected or repaired
Any misdirected effort at manipulation or pressure may result in irreparable injury to the parts.
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irreverent
Detail    speak
a. disrespectful; showing lack of due respect; not revering god
Sorry, that was irreverent if you considered skiing is about the least diverse sport, especially your living in a ski town.
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irrevocable
Detail    speak
a. unalterable; irreversible; impossible to retract or revoke
As Sue dropped the 'Dear John' letter into the mailbox, she suddenly wanted to take it back, but she could not: her action was irrevocable.
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irrigate
Detail    speak
v. supply land with water artificially; clean a wound with a fluid
How do you irrigate a wound in the wilderness setting?
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jabber
Detail    speak
v. talk rapidly, unintelligibly, or idly
Why does the fellow jabber away in French when I can't understand a word he says?
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