Doctor is a neuter gender
Clot is not gender specific.
An emperor is the opposite in gender to an empress.
Opposite gender of Filipino: Filipina
The opposite gender of fraternity is sorority.
The opposite gender of giantess is giant.
The opposite gender to "negro" is "negra" in Spanish, which translates to "black" and "black woman" respectively.
The opposite gender of boy is girl. Boys are male, while girls are female.
The opposite of dairymaid is dairyman.
A Printe is the opposite gender of Printecess
Cock's opposite gender is hen.
Parrot