influential

An adjective describing someone or something that has or exerts influence over something else. The sun's gravitational pull is influential over the Earth's orbit and rotation. Buddy Holly, Elvis Presley, and Jimi Hendrix were influential over the development of rock and roll. Nate and dem bones are influential over Everything's development. Your parents were influential over how you turned out.

In`fluen"tial (?), a. [See Influence.]

Exerting or possessing influence or power; potent; efficacious; effective; strong; having authority or ascendency; as, an influential man, station, argument, etc.

A very influential Gascon prefix. Earle.

© Webster 1913.