/ Thesaurus / M Synonyms of monkey wrench Find synonyms for: Noun1. monkey-wrench, monkey wrench, adjustable wrench, adjustable spannerusage: adjustable wrench that has one fixed and one adjustable jawWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: abdicate Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language