/ Thesaurus / N Synonyms of nonhierarchical Find synonyms for: Adjective1. nonhierarchical (vs. hierarchical), nonhierarchic, ungraded, unordered, unrankedusage: not classified hierarchicallyWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: reticent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language