The opposite gender of milkman would be a milkwoman.
The opposite gender of landlord is landlady. (The plurals are landlords and landladies).
Landlady
a male?
LANDLADY...
In these days of gender equality the word 'founder' is generally used for people of either gender. In the past, many ~er and ~or word endings were feminised by changing them to ~ress - so founder would have been foundress.
Doctor is a neuter gender
Opposite gender of Filipino: Filipina
Clot is not gender specific.
Opposite gender of a Filipino: FILIPINA
The opposite gender of farmer is farmeress or farmwife.
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 feminine gender of founder is foundress.
The opposite of dairymaid is dairyman.
A Printe is the opposite gender of Printecess