It is of utmost importance to understand what plagiarism is when attempting to provide the quintessential answer.
"Quintessential" is an adjective that describes the perfect example of a particular type, The quintessential quarterback would be one who has all of the traits and qualities those who are knowledgeable about football would expect from a quarterback. There are quintessential villains and heroes. It could be that "quintessential" is generally used to describe people, but that may not be necessarily true.
That photograph caught a quintessential moment in our nation's hsitory.
Beyond our solar system, the heavens are made up of only quintessential elements.
The classic novel is often regarded as a quintessential example of American literature.
No, "quintessential" is not a noun. It is an adjective used to describe something as representing the most perfect or typical example of a quality or class.
"Alice's elegant manners and sophisticated taste make her the quintessential example of a refined lady."
Jacqueline Kennedy's poise, grace and class made her the quintessential first lady.
You can use it as an adjective.
by adjective in the sentence
In a sentence.
NO but in the sentence "Use of the word "in" as an adjective is IN these days" the IN is an adjective
An adjective describes a noun.