/ Thesaurus / S Synonyms of sophistical Find synonyms for: Adjective1. sophistic, sophistical, invalid (vs. valid)usage: plausible but misleadingWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: digression Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language