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Iconoclast (noun) : If you describe someone as an iconoclast, you mean that they often criticize beliefs and things that are generally accepted by society. 
Adherent (noun) : An adherent is someone who holds a particular belief or supports a particular person or group. = follower, supporter

Ex. This idea is gaining adherents.
Demagogue (noun) : If you say that someone such as a politician is a demagogue you are criticizing them because you think they try to win people's support by appealing to their emotions rather than using reasonable arguments.
Saboteur (noun) : A saboteur is a person who deliberately damages or destroys things such as machines, railway lines, and bridges in order to weaken an enemy or to make a protest. In Britain, people who try to stop blood sports such as fox hunting are also referred to as saboteurs.

Ex. The saboteurs had planned to bomb buses and offices.
Elite (noun) : You can refer to the most powerful, rich, or talented people within a particular group, place, or society as the elite.

Ex. ...a government comprised mainly of the elite...
Ex. We have a political elite in this country.
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Ignominious (adj) : If you describe an experience or action as ignominious, you mean it is embarrassing because it shows a great lack of success. = humiliating
Ex. Brazil's ignominious defeat against Germany in the semi-final.
Sordid (adj) : If you describe someone's behaviour as sordid, you mean that it is immoral or dishonest.
Ex. I don't want to hear the sordid details of your relationship with Maya. 
Respectable (adj) : Someone or something that is respectable is approved of by society and considered to be morally correct.
Ex. He came from a perfectly respectable middle-class family.
Ingenuous (adj) : If you describe someone as ingenuous, you mean that they are innocent, trusting, and honest. 

Ex. He seemed too ingenuous for a reporter.
Opprobrious (adj) : Opprobrious is a heavy-duty word to describe something taunting or shameful. Opprobrious words criticize in a mean, hurtful way.
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Illustrious (adj) : If you describe someone as an illustrious person, you mean that they are extremely well known because they have a high position in society or they have done something impressive. = distinguished
Ex. Sachin Tendulkar had a long and illustrious career.
Conspicuous (adj) : If someone or something is conspicuous, people can see or notice them very easily.
Ex. The most conspicuous way in which the old politics is changing is in the growing use of referendums.
Venerable (adj) : A venerable person deserves respect because they are old and wise.
Ex. ...a venerable old man with white hair.
Unknown (adj) : An unknown person is not famous or publicly recognized.

Ex. He was an unknown writer.
Ex. ...a popular environment where both established and unknown artists can meet, talk and drink.
Resplendent (adj) : If you describe someone or something as resplendent, you mean that their appearance is very impressive and expensive-looking.
Ex. Aliya, resplendent in royal blue velvet, was hovering beside the table.