/ Thesaurus / I Synonyms of intercostal muscle Find synonyms for: Noun1. intercostal, intercostal muscle, musculus intercostalis, skeletal muscle, striated muscleusage: muscles between the ribs; they contract during inspirationWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: devout Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language