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