The noun secretary (plural secretaries) is a genderless noun, used for both male and female secretaries. Example:
Both Warren Christopher and Madeleine Albright were Secretaries of State under President Bill Clinton and Colin Powell and Condoleezza Rice were both Secretaries of State under President George W. Bush.
female
The opposite gender of a male secretary is a female secretary. In the context of job titles, the term "secretary" is typically gender-neutral today, so it can refer to individuals of any gender regardless of their designation. However, if specifically referencing traditional gender distinctions, then a female secretary would be the opposite.
female
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.