/ Thesaurus / R Synonyms of rationalize away Find synonyms for: Verb1. rationalize away, rationalise away, reasonusage: substitute a natural for a supernatural explanation of; "you can rationalize away all the strange noises you hear--there is no poltergeist in the house!"WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: maritime Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language