INFLUENTIAL
Source: 566, 567
influential. Influential, a. exerting influence or power
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In′flu‐en″tial (ĭn′flū̍‐ĕn″shal), 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.