| Progenitor (n.) An ancestor in the direct line; a forefather; a founder. Thesaurus Entries ancestor, ancestors, ancestress, antecedent, antecedents, archetype, ascendant, ascendants, begetter, elders, fathers, forebear, forebears, forefather, forefathers, foregoer, forerunner, grandfathers, grandparent, grandparents, guide, origin, original, originator, parent, patriarchs, pattern, precursor, predecessor, predecessors, primogenitor, procreator, progenitors, progenitress, progenitrix, prototype, source |