demoniacal
They considered any form of pagan practice as demoniacally inspired and energized by evil supernaturalism.
He has fought and argued and worked demoniacally to keep poetry on the map.
The foxes barked demoniacally like forest dogs.

SMART Vocabulary: related words and phrases

Morally wrong and evil
abhorrent
abhorrently
amoral
amorality
anomie
dissolute
dissolutely
dissoluteness
enormity
evil
nefariousness
no goodidiom
no more Mr Nice Guyidiom
non-ethical
obscene
trespass
turpitude
unconscionable
unconscionably
unethical

You can also find related words, phrases, and synonyms in the topics:

Religious concepts: devils