realism

Concise Oxford English Dictionary © 2008 Oxford University Press:
realism/ˈriːəlɪzəm/

▶noun

• 1 the attitude or practice of accepting a situation as it is and dealing with it accordingly.

• 2 (in art or literature) the representation of things in a way that is accurate and true to life.

• 3 Philosophy the doctrine that universals or abstract concepts have an objective or absolute existence. Often contrasted with nominalism.

  ■ the doctrine that matter as the object of perception has real existence.

– derivatives
realist noun & adjective.