/ Thesaurus / E Synonyms of expansiveness Find synonyms for: Noun1. expansiveness, expansivity, impressiveness, grandness, magnificence, richnessusage: a quality characterized by magnificence of scale or the tendency to expand; "the expansiveness of their extravagant life style was soon curtailed"2. effusiveness, expansiveness, expansivity, communicativenessusage: a friendly open trait of a talkative personWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: kiln Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language