Breadcrumb Home > Thesaurus > U Synonyms of underage Find synonyms for: Adjective1. minor (vs. major), nonaged, underageusage: not of legal age; "minor children"2. underage, dependent (vs. independent)usage: dependent by virtue of youthWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of underage (Dictionary) ✖ Related Content Daily Word Quiz: guilloche Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language