contrasexual

adjective

(of a woman) appearing to defy the female sexual stereotype by being content to be single and childless while being sexually active and financially independent

noun

a contrasexual woman

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012