A round character has many traits, some of which may even be contradictory--a very complex individual
A complex character is a type of character that is more than one-dimensional. He/she changes attitudes and behaviors to suit different situations.
Mathilde from The Necklace is complex because she is not a one dimensional character. She is a round character who is not stereotypical and struggles with her own motives.
The character experiences many different emotions and has multiple motivations.
This is a "round" (complex) character.
This is a "round" (complex) character.
A complex character can be called many things. Believable and realistic are two words, but perhaps you are thinking of "round" characters as opposed to "flat" characters who are not complex.
A character who shows different sides
round character
Round character
the difference is that a polygenic character is is influenced by several genes and they show many variation, complex characters are influences strongly the environment and genes.
protagonist