There are few animals that have an opposite, or contrary species. The exceptions are the general terms predator and prey, or carnivore versus herbivore.
Higher animals that are the opposite in speed from the cheetah would be the sloth, or among lower species, the turtle or the snail.
The opposite gender of a male tiger is a tigress.
A tigress is a female tiger. So, the opposite would be a male tiger.
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.
There is no opposite, but the male form of tigress(es) is tiger(s).
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.