The opposite of true marriage, which of course is same-sex marriage. Opposite Marriage was endorsed in 2009 by Miss California in an attempt to begin a movement to give rights to heterosexual couples. Supporters of "marriage" have blasted proponents of "opposite marriage" because they say it goes against the traditional definition of marriage between 1 man and 1 man or 1 woman and 1 woman.
Bob: Hey did you hear Miss California's speech last night?
Mary: Yeah! Maybe opposite-sex couples will finally have the same rights as everyone else! Maybe we can finally have an opposite marriage and express our true love!
(noun) antonym of common marriage, a legal relationship of two people who do not secretly or openly wish they could go back and "do it all differently," two people committed to each other, yet still do fun activities such as having sex or going out with friends.
"My husband and I love having sex with each other; I'm so glad we chose an oppositemarriage."