upstart
noun
a person who has risen suddenly from a humble position to wealth, power, or a position of consequence.
Used to describe an ongoing action or state that is currently taking place in the immediate present.
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Coxcombs need only lines; their opinions are upstarting islands, held together by nothing but emptiness....
From Hesperus or Forty-Five Dog-Post-Days Vol. I. A Biography by Jean Paul