abrosexual UK /ˌæb.ɹəʊˈsɛk.ʃuː.əl/US /ˌæb.ɹoʊˈsɛk.ʃu.əl/adjective 1noun 1forms 1 adjective1 •(rare) Having a changing or fluid sexual orientation, one that changes over time. noun1 •One who is abrosexual. formsabrosexuals