/ Thesaurus / S Synonyms of syringa amurensis japonica Find synonyms for: Noun1. Japanese tree lilac, Syringa reticulata, Syringa amurensis japonica, lilacusage: small tree of Japan having narrow pointed leaves and creamy-white flowersWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: nefarious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language