Definition of "sinner"

A person who sins or has sinned.

1. A person who, by one particular action, has sinned.  quotations  examples

   Quotations

   • Some Christians believe the Bible tells us that homosexuals are sinners. The current trend of increased acceptance of the lesbian, gay, bisexual, transgender and queer (LGBTQ) community is distressing to these Christians who sincerely want to follow the Bible.

     2016, Janet Edmonds, The Bible Doesn’t Say That Homosexuality is a Sin

2. (Christianity, doctrinal) An unregenerate person.  examples

(figuratively, by extension) A person with negative qualities; one who does bad things.

1. One who lives a hedonist life; a self-indulgent person.  examples