The opposite gender of a bull is a cow. In the context of "bull-calf," which refers to a young male bovine, the opposite would be a heifer, which is a young female bovine that has not yet had a calf. Thus, the opposite gender of a bull-calf would be a heifer-calf.
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.
gentlewoman....
granddaughter
The opposite gender of lad is lass.