quintessential
"Quintessential" is a rich and expressive adjective with essentially one core meaning, but it is used in a variety of contexts. It describes the most perfect, most typical, or most complete example of something — the one thing that represents a whole idea better than anything else could.
When something is quintessential, it is the absolute best or most typical example of its kind. Think of it as the one thing that, if you had to show someone what a category looks like, you would point to first. It captures everything that makes something what it is — nothing is missing, nothing is extra.
everyday language, writing, criticism · Modern, widely used