sinful
His fervent soul was full of sorrow for the world and its sinfulness.
He became very aware of his own sinfulness and of the corruption of the world in which he lived.
Conscience, which decides the righteousness or sinfulness of our actions, is the result of education.

SMART Vocabulary: related words and phrases

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

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

Religious concepts: sin