"ascendant" in the noun sense
1. ascendant, ascendent
position or state of being dominant or in control
"that idea was in the ascendant"
2. ancestor, ascendant, ascendent, antecedent, root
someone from whom you are descended (but usually more remote than a grandparent)
"ascendant" in the adjective sense
1. ascendant, ascendent, ascensive
tending or directed upward
"rooted and ascendant strength like that of foliage"- John Ruskin
2. ascendant, ascendent, dominating
most powerful or important or influential
"the economically ascendant class"
"D-day is considered the dominating event of the war in Europe"
Source: WordNet® (An amazing lexical database of English)
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