ascendent in WordNet English dictionary

1. someone from whom you are descended (but usually more remote than a grandparent)
   ancestor  ascendant  ascendent  antecedent  root 
   
2. position or state of being dominant or in control
   "that idea was in the ascendant"
   ascendant  ascendent 
   

1. tending or directed upward
   "rooted and ascendant strength like that of foliage"- John Ruskin
   ascendant  ascendent  ascensive 
   
2. most powerful or important or influential
   "the economically ascendant class"; "D-day is considered the dominating event of the war in Europe"
   ascendant  ascendent  dominating