/ Thesaurus / H Synonyms of hydrographic Find synonyms for: Adjective1. hydrographic, hydrographicalusage: of or relating to the science of hydrographyWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: inutiae Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language