/ Thesaurus / O Synonyms of old world least weasel Find synonyms for: Noun1. Old World least weasel, Mustela nivalis, weaselusage: of EuropeWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: acquiesce Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language