Breadcrumb Home > Thesaurus > O Synonyms of olefine Find synonyms for: Noun1. alkene, olefine, olefin, aliphatic compoundusage: any unsaturated aliphatic hydrocarbonWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. ✖ Related Content Daily Word Quiz: deracinate Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language