ascendent
as-cen-dent
noun
Zodiac sign rising on eastern horizon at birth.
"Her ascendent sign was Leo."
adjective
Gaining increasing power, influence, or importance.
"The new leader was clearly ascendent."
Thesaurus
Synonyms: ascending, ascensive, ascendant, antecedent, ancestor, root, dominating, dominant
Antonyms: descendant, descendent