/ 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: cautious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language