/ Thesaurus / A Synonyms of arenaceous rock Find synonyms for: Noun1. arenaceous rock, sedimentary rockusage: a sedimentary rock composed of sandWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: acerbity Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language