/ Thesaurus / I Synonyms of infernal machine Find synonyms for: Noun1. time bomb, infernal machine, bombusage: a bomb that has a detonating mechanism that can be set to go off at a particular timeWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: devout Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language