/ Thesaurus / P Synonyms of perpetuation Find synonyms for: Noun1. prolongation, protraction, perpetuation, lengthening, continuance, continuationusage: the act of prolonging something; "there was an indefinite prolongation of the peace talks"WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: feline Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language