The term "jack" as used for a male animal often has the female term "jill."
There also other respective female terms for jack:
opossum - jill
wallaby - jill
wombat - jill
donkey or jackass - jennet (jenny).
kangaroo - doe, jill, roo, or flyer.
mule - hinny
weasel - jill, doe
Jack
The opposite gender of a jennet, which is a female donkey, is a jack, referring to a male donkey. Jennets and jacks are terms commonly used in the context of donkey breeding and husbandry.
a donkey is a donkey, a male donkey is called a 'jack' and a female is called a 'jenny'
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 of giantess is giant.
The opposite gender for Joseph is Josephine.
The opposite of dairymaid is dairyman.