"flagitious" in the adjective sense
1. flagitious, heinous
extremely wicked, deeply criminal
"a flagitious crime"
"heinous accusations"
2. atrocious, flagitious, grievous, monstrous
shockingly brutal or cruel
"murder is an atrocious crime"
"a grievous offense against morality"
"a grievous crime"
"no excess was too monstrous for them to commit"
Source: WordNet® (An amazing lexical database of English)
Princeton University "About WordNet®."
WordNet®. Princeton University. 2010.
View WordNet® License