/ Thesaurus / R Synonyms of red region Find synonyms for: Noun1. hellfire, red region, Hell, perdition, Inferno, infernal region, nether region, pitusage: a place of eternal fire envisaged as punishment for the damnedWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: beseech Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language