Breadcrumb Home > Thesaurus > S Synonyms of sinew Find synonyms for: Noun 1. tendon, sinew, connective tissue usage: a cord or band of inelastic tissue connecting a muscle with its bony attachment 2. brawn, brawniness, muscle, muscularity, sinew, heftiness, strength usage: possessing muscular strength WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of sinew (Dictionary) TrendingHere are the facts and trivia that people are buzzing about. Hanukkah Origins of the Christmas Holiday Jewish Holidays, 2010-2030 (A.M. 5770-5791) Western Christian Holidays, 2010-2030 Krampus: The Christmas Devil Kwanzaa ✖ Related Content Daily Word Quiz: genome Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language