Assuming you mean the term for a female abbot - the term is 'abbess'
A female abbot is an abbess.
The word abbot does not have an opposite. The word abbess, if that is what you have in mind, is not an antonym of abbot.
Abbot means "the head/superior of an abbey of monks"So the opposite would be a member/members of the abbey with the least influence and authority.
The noun for a male is abbot.The noun for a female is abbess.
An abbess is a female head of an abbey of nuns. The title for a male holding this position is abbot, though an abbot would run a monastery for men instead of an abbey for nuns.
Abbot Apodemus.
Abbot Glisam was the first abbot dormouse of Redwall.
The address of the Abbot Historical Society is: Po Box 105, Abbot, ME 04406-0105
The Abbot was created in 1820.
An abbot-bishop is a person who holds both posts of abbot and bishop simultaneously.
abbot is the superior of monastery
the abbot