/ Thesaurus / I Synonyms of inefficaciously Find synonyms for: Adverb1. inefficaciously, ineffectivelyusage: in an ineffective manner; "he dealt with the problem rather ineffectively"WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: gregarious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language