Wordnet 3.0
ADJECTIVE (1)
1.
having or exercising influence or power;
- Example: "an influential newspaper"- Example: "influential leadership for peace"
The Collaborative International Dictionary of English v.0.48:
Influential \In`flu*en"tial\ ([i^]n`fl[-u]*[e^]n"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.
[1913 Webster]
A very influential Gascon prefix. --Earle.
[1913 Webster]
WordNet (r) 3.0 (2006):
influential
adj 1: having or exercising influence or power; "an influential
newspaper"; "influential leadership for peace" [ant:
uninfluential]
Moby Thesaurus II by Grady Ward, 1.0:
62 Moby Thesaurus words for "influential":
absolute, ascendant, authoritarian, authoritative, authorized,
autocratic, charismatic, charming, clothed with authority,
commanding, competent, consequential, considerable, controlling,
dominant, duly constituted, effective, effectual, efficacious,
eminent, empowered, enchanting, estimable, ex officio, forceful,
governing, great, guiding, hegemonic, hegemonistic, imperative,
important, instrumental, leading, magnetic, mighty, momentous,
monocratic, official, personable, persuasive, potent, powerful,
predominant, preeminent, prestigious, prominent, puissant, ranking,
reputable, ruling, senior, significant, strong, suasive,
substantial, superior, supreme, telling, totalitarian, weighty,
winning