Synonyms for Heinous:

adj.

abominable (adjective)
loathsome, reprehensible, terrible, repulsive, repellent, foul, repugnant.
atrocious (adjective)
monstrous, wicked.
cursed (adjective)
damnable.
egregious (adjective)
grievous.
evil (adjective)
atrocious, nefarious, reprehensible, damnable, disgraceful, repellent, bad, sinful, offensive, detrimental, loathsome, wicked, revolting, sinister, baneful, repulsive, calamitous, destructive, hideous, abominable, terrible, foul, repugnant, evil, monstrous.
flagrant (adjective)
disgraceful, enormous.
heinous (adjective)
evil, offensive, frightful, horrendous, revolting, flagitious, abominable, atrocious, scandalous, bad, hideous, outrageous, nefarious, shocking.
offensive (adjective)
outrageous.
wicked (adjective)
wicked.

n.

chargeable, criminality, aggravated, Extraditable, hanging, gangland, aggravating, first degree, hit-and-run. scandalous, enormous, shocking, outrageous, right. atrocious (noun)
outrageous, cruel, study at outrageous, frightful, horrendous.
heinous (noun)
evil, atrocious, grievous, flagitious, monstrous, wicked.

Other synonyms:

chargeable, Extraditable, criminality, aggravated. scandalous, aggravating, shocking, hanging, hit-and-run. enormous, first degree.

Usage examples for heinous

  1. After the death of Gosnold, Captain Kendall was deposed from the Council and put in prison for sowing discord between the President and Council, says Wingfield; for heinous matters which were proved against him, says Percy; for " divers reasons," says Smith, who sympathized with his dislike of Wingfield. – Captain John Smith by Charles Dudley Warner Last Updated: February 22, 2009
  2. They have recourse to this to avoid the shame of having a child- a circumstance in which alone the disgrace of their conduct consists, and which would be thought a thing so heinous as to deprive them forever of respect and religious marriage rites. – Primitive Love and Love-Stories by Henry Theophilus Finck
  3. This most heinous crime . – The Tangled Skein by Emmuska Orczy, Baroness Orczy