/ Thesaurus / H Synonyms of hollow back Find synonyms for: Noun1. lordosis, hollow-back, spinal curvatureusage: an abnormal inward (forward) curvature of the vertebral columnWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: rustic Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language