UIN[1]stands for undecided/unsure, unknown/unnamed, unidentified/undefined/unfixed, unknown/unknownable, unquantifiable/unqualifiable/unidentifiable or unexplainable/undetermined/undeterminable in nature.[2][3][4]
- ↑ https://imoga-pride.tumblr.com/post/181988557961/uingender-flag
- ↑ https://gender-resource.tumblr.com/post/634097592125505536/not-the-same-anon-but-can-you-send-the-list-of#notes
- ↑ https://variant-archive.tumblr.com/post/633623868407414784/gender-natures-list-nov-2020
- ↑ https://imoga-pride.tumblr.com/post/181988557961/uingender-flag