/ Thesaurus / D Synonyms of delusional disorder Find synonyms for: Noun1. delusional disorder, mental disorder, mental disturbance, disturbance, psychological disorder, folieusage: any mental disorder in which delusions play a significant roleWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: blithesome Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language