Anapatrapya

Anapatrapya is a Buddhist term that is translated as "lack of propriety", "disregard", etc. In the Theravada tradition, anottappa is defined as the absence of dread on account of misconduct. In the Mahayana tradition, anapatrapya is defined as engaging in non-virtue without inhibition on account of others.
Anapatrapya is identified as:

One of the fourteen unwholesome mental factors within the Theravada Abhidharma teachings
One of the twenty secondary unwholesome factors within the Mahayana Abhidharma teachings

Explanations

Theravada

In the Visuddhimagga, anottappa is defined together with ahirika as follows:
Nina van Gorkom explains:

Mahayana

The Abhidharma-samuccaya states:
Mipham Rinpoche states:
Alexander Berzin explains: