Nuniversary 

The anniversary of a nuns final vows in the Catholic Church

Sister Linda celebrated her 30th Nuniversary the other day.

Nuniversary by Scumcious April 19, 2020

Nonaversary 

The day you were married to an ex spouse. Your non anniversary.

I celebrated my Nonaversary by throwing darts at a photo of my ex.

Nonaversary by Faster Redhead May 5, 2016

noniversary 

the anniversary of the day you broke up with your spouse/significant other.

the great thing about a noniversary is you don't have to spend any cash, unlike an anniversary

noniversary by James OhhhhNeill April 20, 2009

nonaversary 

The date that you got married to your ex-spouse

I'm celebrating y first nonaversary by getting a boobjob and going to South Beach with my squad.

nonaversary by Faster Redhead May 24, 2016

Unniversary 

An unniversary is the yearly celebration of the day you became divorced. Whether a happy or depressing celebration is up to the participant.

"Let's wish a merry unniversary to Ben, who is celebrating his sixth year since his soul-crushing divorce from Rebecca. How's that loneliness treating you?"

Unniversary by Will Rickabaugh October 19, 2006

Luniversary 

n the date on which an event occurred in some previous month.

Next week my girlfriend and I are celebrating our 6-month luniversary!

Luniversary by John W. Oates December 12, 2003

nonniversary 

What you call your wedding anniversary after you are divorced or separated.

Tomorrow I will be celebrating my 2nd nonniversary.

nonniversary by drguy June 1, 2013