A "pretermitted child" is a legal term used to describe a child who has been left out of a parent's will. There are several synonyms for pretermitted child, including "omitted child," "disinherited child," and "forgotten child." Other related terms include "heir at law," "intestate succession," and "probate law." These terms are important to understand for individuals who want to ensure that their children are provided for after their passing. It is important to consult with a lawyer to create a comprehensive estate plan, including a will, to ensure that all loved ones are taken care of.