Meaning : Position or state of being dominant or in control.
Example :
That idea was in the ascendant.
Synonyms : ascendent
Meaning : Someone from whom you are descended (but usually more remote than a grandparent).
Synonyms : ancestor, antecedent, ascendent, root
Meaning : Most powerful or important or influential.
Example :
The economically ascendant class.
D-day is considered the dominating event of the war in Europe.
Synonyms : ascendent, dominating