l malaise /məˈleɪz/
Definition: a general feeling of being worried , unhappy , or not satisfied
Example: Chronic Fatigue Syndrome is often accompanied by poor memory , sore throat , and feeling of malaise after exertion.
l mandatory /ˈmændəˌtɔri/
Definition: ordered by a law or rule
Example: An new accounting system will soon become mandatory for all departments.
Example: It’s mandatory to do something: It’s mandatory to wear a seat belt in all states.
Example: The trial judge imposed the mandatory sentence of life imprisonment.
l jubilant /ˈdʒubɪlənt/
Definition: extremely happy because something good has happened
Example: The football team Brazil were jubilant after their victory in the World Cup.
l squirm /skwɝm/
Definition1: to move by twisting and turning in a small space
Example: "Leave me alone!" he cried, trying to squirm free.
Definition2: to look or feel embarrassed and uncomfortable
Example: Some administration officials are privately squirming with discomfort.
l intractable /ɪnˈtræktəb(ə)l/
Definition: very difficult and impossible to deal with
Example: With more and more divorced parents , juvenile delinquency has become a pervasive and apparently intractable problem in Taiwan.
l predominant /prɪˈdɒmɪnənt/
Definition1: the most common or greatest in number or amount
Example: The predominant view was that she was guilty.
Definition: most important or powerful
Example: My predominant feeling was one of surprise.
l preface /ˈprefəs/
Definition: an introduction of a book or speech
Example: The author presented his prime idea of this writing in the preface of his new book.
l unfazed /ʌnˈfeɪzd/
Definition: not worried or upset by something bad that happens
Example: He seems unfazed by recent even.
l premium /ˈpriːmiəm/
Definition: an amount of money that you pay regularly for an insurance policy
Example: Your monthly premium will be £36
l invigorate /ɪnˈvɪɡəreɪt/
Definition1: to give someone more energy
Example: A strong cup of coffee might help invigorate you.
Definition2: to make something stronger and more effective
Example: The new efforts invigorated their flapping economy.
l illicit/ɪˈlɪsɪt/
Definition: not allowed by the laws or rules
Example: The senator claimed that he smoked marijuana only but has not tried other illicit drugs.
l forensic /fəˈrenzɪk/
Definition: relating to the use of scientific methods to solve crimes and to find out who committed them
Example: Forensic experts searched the house.
l futuristic /ˌfjutʃəˈrɪstɪk/
Definition: so modern that it seems to belong to the future
Example: The singer’s futuristic dressing and exotic makeup amazed fans in her concert.
l hefty /ˈhefti/
Definition1: heavy and large
Example: Richard is a very hefty guy.
Definition2: a hefty amount of money is a large and impressive amount
Example: The hefty pay raise succeeded in subsiding employees’ criticism of the working environment, but it also showed the president’s irresponsibility to elude the existing problem.
l flagrant /ˈfleɪɡrənt/
Definition: done in an obvious way that shows you do not care if you break rules or offend people
Example: The minister was criticized for the flagrant waste of taxpayers’ money.
l eclectic /ɪˈklektɪk/
Definition: an eclectic group of people , or things ,ideas is interesting or unusual because it consists of many different types
Example: The song displays an eclectic mix of influence.
l contingent /kənˈtɪndʒənt/
Definition1: a group of soldiers , police , vehicles ,etc. from the particular place, forming a larger group
Example: France has the largest peacekeeping contingent of any nation.
Definition2: a group of people representing a place , organization , etc. at a meeting or event
Example: Let’s welcome the Portuguese contingent.
l demoralizing /dɪˈmɔrəˌlaɪz/
Definition: someone feel no confident
Example: After going through a series of demoralizing failures , he finally lost his mind.
l belligerent /bəˈlɪdʒ(ə)rənt/
Definition: very unfriendly and angry
Example: Because of that belligerent general , people in that country suffer a lot from wars.
l aggravate /ˈæɡrəveɪt/
Definition: to make something bad become worse , especially a situation or a medical condition
Example: His headache was aggravated by all noise.
l shed (v) /ʃed/
Definition1: to get rid of something that is not wanted or is no longer necessary
Example1:He is keen to shed his "bad-boy" image.
Example: The company shed another 250 workers this month.
Definition2: to let something fall off as part of a natural process
Example1: Deciduous trees shed their leaves each fall.
Example2: A snake was shedding its skin.
Definition3: to lose something accidentally because it falls off
Example: The road was closed after a logging truck shed its load.

