Real quick:
Virtue : Virtu-ous Vice : Vici-ous
What? Looks strange. I have ONLY ever used vicious to mean violent or malignant.
I looked it up:
There it is. Definition 2 from oxford languages, brought to you by the Google SERP. Immoral.
I especially love the quote: “every soul on earth, virtuous or vicious, shall perish”.
You can bet tomorrow’s daylight that I’m going to find every chance to use “vicious”, instead of “wrong” “evil”, or “immoral”. Such a stronger, more nuanced word.