Definition of "Ascendant" :
noun: someone from whom you are descended (but usually more remote than a grandparent)
noun: position or state of being dominant or in control
"That idea was in the ascendant."
adjective: most powerful or important or influential
"The economically ascendant class."
adjective: tending or directed upward
"Rooted and ascendant strength like that of foliage."