vice
Bad or immoral behaviour. (Especially often, a habit that harms oneself or others)
Example
“Pride is a vice, not a virtue.”
Other meanings
Any of various crimes related (depending on jurisdiction) to weapons, prostitution, pornography, gambling, alcohol, tobacco, or drugs.
A defect in the temper or behaviour of a horse, such as to make the animal dangerous, to injure its health, or to diminish its usefulness.
Word history
From Latin "vitium" (fault or blemish).
Where this comes from
This definition is adapted from “vice” on Wiktionary, by its contributors, published under CC BY-SA 4.0. This page is published under the same licence.