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

unniversary 

The annual celebration of a leap day marriage in any non-leap year. Usually celebrated on February 28 and/or March 1.

Wife: Since we got married on leap day, we don't have an anniversary this year.
Husband: Then I don't have to get you anything, right?
Wife: No, it's our unniversary. I still expect gifts.

unniversary by .d.h. March 16, 2011

dracotok anniversary 

date: august 22

“ august 22nd is the dracotok anniversary !” wtf do y’all want me to say lmaoo

dracotok anniversary by earth2mina August 21, 2021

Unanniversary 

The day you would have celebrated as your anniversary if you had not broken up.

Today's our unanniversary. We would've been together for three years if we were still together.

Unanniversary by ScribblScrabble August 29, 2012

anniversary

the day you and your special someone began your relationship.

when is our anniversary?

anniversary by reformedpug February 7, 2017

Vegetarian Anniversary 

The yearly recurrence of the date of that one became a vegetarian. Also known as a vegeversary.

Happy vegetarian anniversary, I cannot believe you haven't had meat in five years!

Vegetarian Anniversary by elleinad1910 January 8, 2012

golden anniversary 

The year you've been together or are celebrating something when it matches the date :

You were first published on July 31, 1977. July 31 of 2008 is 31 years later - this is your golden anniversary of being a published author.

golden anniversary by Whizz211 January 17, 2014