There is no antonym for the noun 'chairperson'.
Examples of synonyms are administrator, director, leader, etc.
chairman
In English there are no masculine or feminine forms. English uses gender specific nouns for a male or a female. The noun for a male is chairman; the noun for a female is chairwoman. However, the common gender form, chairperson, is becoming more frequently used.
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.
The opposite gender of fraternity is sorority.
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.
Parrot