genderfluid adjective 1noun 1forms 1 adjective1 •Not having a fixed gender; having a gender which changes from time to time.Another way that one can be "transgressively gendered" is by identifying as genderqueer or genderfluid—i.e., refusing to identify fully as either woman or man. — 2009 noun1 •(rare) A genderfluid person. formsgenderfluids