Queerplatonic

According to The Oxford English dictionary, the first registered examples of the meaning "Strange, odd, peculiar, eccentric, in appearance or character" for queer
 (1508) predate in more than four centuries a meaning that directly 
implies 'not heterosexual or cisgender' (1922). Although the use of queerplatonic
 for the concept presented in this article is a 21st-century phenomenon,
 adjectifying something platonic as "queer" is not recent, as show the 
three following examples: "indulging in a queer, platonic flirtation", 
1936;[1] "What a queer chap you are, he says, with your Platonic love! [/] Queer. . .Platonic . . .", 1971;[2] "he talks in that queer platonic vein at the end of Faust" , 1994.[3] Due to the controversy surrounding the reclamation of queer in some spaces, however, there are alternatives to queerplatonic such as is "quasiplatonic" or "quirkyplatonic".
See: Queerness; Romantic relations.