Freudianism

Freudianism is the mode of Freud's ideas so far as they are active in the world.
Discredited means it has less credit in a milieu — that it is viewed as "discredited" in certain milieus is a current-day fact. It may have been discredited somewhat too much in the mainstream (yes, it was). 
They aren't discredited overall. Credit of ideas even in vogue goes up n' down. Even the credit ratio of Google goes through ups n' downs.
Essentially, Freud was a great addition to Nietzsche's diagnosis of Man, and to that of Christianity.
Discredited does not necessarily mean "proven wrong." 
Freudianism is more parascience than high-grade 21st-century science. It's not pseudoscience, so far as it's not pretending to be within the demarcations of science.
See: Freud; Psychoanalysis