Read the dictionary definition of ascendant. All definitions for this word.
1. someone from whom you are descended (but usually more remote than a grandparent)
2. position or state of being dominant or in control
1. that idea was in the ascendant
3. most powerful or important or influential
1. the economically ascendant class
2. D-day is considered the dominating event of the war in Europe
4. tending or directed upward
1. rooted and ascendant strength like that of foliage