Was that a he or a she? If someone has an androgynous look, it is hard to tell whether he or she is male or female.
You can see the meaning of androgynous in its parts: In Greek, andros means "male" and gyn means "female." Someone who is androgynous has both male and female characteristics, and therefore may be mistaken for being a member of the opposite gender. Don't confuse androgynous with unisex, which describes objects or places used by both males and females, like a unisex restroom.