Adjective
Monstrous.
Source: Webster's dictionaryThe monstruous paradox that people come closer to one another without words. Max Frisch
He originally sought power, money and mostly the restoration of his human body, but the madness brought about by overuse of the relic drove him to savage, monstruous acts of depravity using the ruby. Source: Internet
In calling the "regiment" or rule of women "monstruous", he meant that it was "unnatural". Source: Internet