Single-ism 

The religion of being single, being awesome and being a sleeze 24-7, 365.

Catholics have Catholicism, the awesome singles have Single-ism

Single-ism by J.A.K November 22, 2009

Singleish

I philosophy/lifestyle on love and relationships in which one remains single in the sense of not entering any kind of committed relationship but continues to date and enjoy non-platonical relationships with not intentions to start one. They do not want to simply have sex with people or they would just be a player.

They are crucially open about their desires and do not lead anyone into thinking they mean to commit more than they do.

Preston's so cute, is he single?

I've heard he's singleish.

Singleish by SuperMaligan May 6, 2018

Singlism 

The stigmatizing of adults who are single. It includes negative stereotyping of singles and discrimination of singles. The word singlism is analagous to terms such as racism and sexism.

In the interview I was directly asked by the owner of the company if I was single or married, I told him
I was single. He made it a point to acknowledge that the philosophy of the company was to hire married people. I was not offered a position although I had all the qualifications, this is an obvious case of Singlism.

Singlism by LVDOC August 31, 2011

singletism 

To rather be of one than of many

quantity over singletism

singletism by Rc-tech82 May 11, 2016