/ Thesaurus / I Synonyms of influential person Find synonyms for: Noun1. important person, influential person, personage, adult, grownupusage: a person whose actions and opinions strongly influence the course of eventsWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: penury Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language