/ Thesaurus / B Synonyms of blue black Find synonyms for: Adjective1. blue-black, bluish black, achromatic (vs. chromatic), neutralusage: of black tinged with blueWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: sequester Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language