Synonyms for Heinousness:

n.

Monstrousness, good, enormity. enormity (noun)
Monstrousness, atrocity, atrociousness.
evil (noun)
hideousness, bane, disgrace, sinisterness, badness, nefariousness, mischief, Repellency, evil, atrocity, monstrosity, offensiveness, foulness, sinfulness, calamitousness, detriment, abomination, reprehensibleness, damnation, wickedness, terribleness, repulsiveness.
heinousness (noun)
atrocity, atrociousness, barbarousness, barbarity.

Other synonyms:

Monstrousness. enormity.

Usage examples for heinousness

  1. As their lives already had been somewhat lengthy, an idea may be formed of the heinousness of Bessie's conduct. – Revenge! by by Robert Barr
  2. And I must sorrowfully acknowledge this seemed a truer view of the case than believing the boy was really impressed with the heinousness of his offence and anxious to make amends. – Seven Little Australians by Ethel Sybil Turner