/ Thesaurus / S Synonyms of splinter group Find synonyms for: Noun1. splinter group, faction, sectusage: a faction or sect that has broken away from its parent organizationWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: nefarious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language