noun

• (obsolete) Deviation from what is normal or standard; irregularity, abnormality.
• (uncountable) Deviation from moral normality; extreme wickedness, nefariousness, or cruelty.
  "Not until the war ended and journalists were able to enter Cambodia did the world really become aware of the enormity of Pol Pot’s oppression."
• (countable) A breach of law or morality; a transgression, an act of evil or wickedness.
  "Yet she appeared confident in innocence, and did not tremble, although gazed on and execrated by thousands; for all the kindness which her beauty might otherwise have excited, was obliterated in the minds of the spectators by the imagination of the enormity she was supposed to have committed."
• (uncountable, sometimes proscribed) Great size; enormousness, hugeness, immenseness.
  "I am in Amerika! I felt like weeping at the enormity of this fact. Amerika, the fabled, the mythic, the coveted. The knowledge that we had no visas, and therefore would not be allowed to set foot on land, dampened my enthusiasm only a little."