There are two genders - male and female. Although certain genetic disorders and mutations can alter the characteristics of these genders, there are no genders other than male or female, which are opposites. "Colt" is neither "male" nor "female"; therefore, gender wise, "colt" has no opposite.
Doctor is a neuter gender
Opposite gender of Filipino: Filipina
Clot is not gender specific.
Opposite gender of a Filipino: FILIPINA
There isn't an opposite gender of farmer. A farmer can be either a male or a female.
An emperor is the opposite in gender to an empress.
The opposite gender for Joseph is Josephine.
The opposite gender of giantess is giant.
The opposite of dairymaid is dairyman.
gentlewoman....
Mistress is the opposite gender of master.
A Printe is the opposite gender of Printecess