Example sentences:

Ramayana:  If Rama’s example of accepting Shabari’s berries had been not just appreciated but also applied, India could have cured itself from centuries of regressive discrimination caused by the birth-based caste system.

Mahabharata:  Madri willingly entered into the funeral pyre with Pandu, while Kunti chose not to — this fact indicates that sati was not a forcibly imposed regressive practice.

Bhagavad-gita:  The Gita is a philosophical analysis of spiritual subjects that needs to be understood in its own right, beyond contemporary worldly categories such as progressive or regressive.