The opposite gender of a great uncle is a great aunt. A great uncle is the brother of one of your grandparents, while a great aunt is the sister of one of your grandparents. Both terms refer to relatives in the same generational level within a family tree.
The opposite gender of uncle is aunt.
The opposite relationship of uncle would be Niece or Nephew.(The opposite gender is aunt.)
Sister-in-law describes a female. Brother-in-law describes a male.
There is no such thing as an "opposite" of a great uncle. The female form of great uncle is great aunt. The person to whom you are a great uncle is your great niece or great nephew, depending on their sex. None of these are opposites.
Niece would be an opposite as a niece is female and a nephew is male.
Great aunt or great uncle depending on your gender.
A common gender nouns for uncle are relative or family member.
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.