名詞 ascendant:

1. position or state of being dominant or in control
   同義詞：ascendent
2. someone from whom you are descended (but usually more remote than a grandparent)
   同義詞：ancestor, ascendent, antecedent, root

形容詞 ascendant:

1. tending or directed upward- John Ruskin
   同義詞：ascendent, ascensive
2. most powerful or important or influential
   同義詞：ascendent, dominating

1. After the election, our political party was once again in the ascendant.
   競選之后，我們的政黨又一次變得越來越強(qiáng)大了。
2. Though he is still a young man his political career is already in the ascendant.
   他雖然年紀(jì)輕輕，可是他在政壇上已青云直上了。

ascendant 也作 as.cen.dent

adj.（形容詞）
Inclining or moving upward; ascending or rising.
向上的：向上傾斜或移動；升高或升起
Dominant in position or influence; superior.
優(yōu)越的：在地位或影響方面處支配地位的；有優(yōu)勢的
n.（名詞）
The position or state of being dominant or in control:
占優(yōu)勢的：處于支配或統(tǒng)治的地位或狀態(tài)：
例句：
a conservative policy currently in the ascendant.
目前保守政策處優(yōu)勢地位

The point of the ecliptic or the sign of the zodiac that rises in the east at the time of a person`s birth or other event.
運(yùn)星，命宮：某人出生或其它事件發(fā)生時升起于東方的黃道點或黃道十二宮
An ancestor.
祖宗