Answer:
A well rounded character contains a completed, well fabricated backstory, multiple personality traits (which aren't always 'good', or 'heroic,' or flat and simple. They will contradict each other.) , and flaws. (They're human. They're not perfect.) And I can most likely guarantee that they will drive the story forward in some way or another.
Step-by-step explanation:
I write for fun. Trust me on this one, dude.