/ Thesaurus / P Synonyms of point of no return Find synonyms for: Noun1. Rubicon, point of no return, line, dividing line, demarcation, contrastusage: a line that when crossed permits of no return and typically results in irrevocable commitmentWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: rustic Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language