immorality

1. The quality or condition of being immoral.
2. An immoral act or practice.

noun

1. A wicked act or wicked behavior: crime, deviltry, diablerie, evil, evildoing, iniquity, misdeed, offense, peccancy, sin, wickedness, wrong, wrongdoing. See right/wrong.
2. Degrading, immoral acts or habits: bestiality, corruption, depravity, flagitiousness, perversion, turpitude, vice, villainousness, villainy, wickedness. See clean/dirty.

The noun has 2 meanings:

Meaning #1: the quality of not being in accord with standards of right or good conduct
  Antonym: morality (meaning #1)

Meaning #2: morally objectionable behavior
  Synonyms: evil, wickedness, iniquity