/ Thesaurus / D Synonyms of deep mined Find synonyms for: Adjective1. deep-mined, mined (vs. unmined)usage: of coal, as contrasted with coal obtained from a strip mine; "deep-mined coal"WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: heifer Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language