/ Thesaurus / I Synonyms of inmarriage Find synonyms for: Noun1. endogamy, intermarriage, inmarriage, marriage, matrimony, union, spousal relationship, wedlockusage: marriage within one's own tribe or group as required by custom or lawWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: penury Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language