There is no exact opposite gender for a heifer. A heifer is a young female that has not yet born a calf. Males that have not been castrated are bulls; males that have been castrated are steers.
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.
A heifer calf.
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