Top Definition
{n} a contraction of 'anti' and 'anniversary'. The date of a breakup/divorce, etc.
September 6th is my antiversary.
by Elendae August 26, 2006
The anniversary of one's breakup. Sometimes celebrated by people with a sense of humor.
Justin isn't your antiversary coming up?
by hasi August 26, 2006
What would have been an anniversary but is not due to a divorce or getting laid off.
Today is my 25th Antiversary.
by meloruff December 09, 2010
The first anniversary from breaking up with an asshole where you go out and party.
"Today is my my one-year anti-versary of being away from that dick ex-husband of mine. Let's go celebrate."
by SharieD April 18, 2010
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