The word bully is gender neutral. It is used for both genders. If you wish to differentiate you can just add the gender in front (ie female bully).
The feminine form of ami is amie. The feminine plural is amies.
The plural possessive form of "bully" is "bullies'."
The feminine form of bajo is baja. The feminine plural is bajas.
The feminine form of alumnus is alumna. The feminine plural is alumnae.
Baroness is the feminine form.
Mistress is the feminine form of master. It is already in feminine form.
The feminine form of charmant is charmante. The feminine plural is charmantes.
The feminine form for host is "hostess."
The infinitive form of the word "bully" is "to bully." This form is used to express the action of bullying in its most basic form without any specific tense or subject.
The plural form of "bully" is "bullies."
The feminine form of benefactor is benefactress.
The feminine form of "mauvais" is "mauvaise."