Breadcrumb Home > Thesaurus > O Synonyms of oblique case Find synonyms for: Noun1. oblique, oblique case, case, grammatical caseusage: any grammatical case other than the nominativeWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. ✖ Related Content Daily Word Quiz: ultimathule Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language