Breadcrumb Home > Thesaurus > O Synonyms of odd hassel Find synonyms for: Noun1. Hassel, Odd Hasselusage: Norwegian chemist noted for his research on organic molecules (1897-1981)WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. ✖ Related Content Daily Word Quiz: sophism Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language