sinful
1. [ adjective ] characterized by iniquity; wicked because it is believed to be a sin
Synonyms: ungodly iniquitous
Examples:

"iniquitous deeds" "he said it was sinful to wear lipstick" "ungodly acts"

Related terms: wicked
2. [ adjective ] having committed unrighteous acts
Synonyms: wicked unholy
Examples:

"a sinful person"

Related terms: unrighteous