/ Thesaurus / L Synonyms of liven up Find synonyms for: Verb1. enliven, liven, liven up, invigorate, animate, stimulate, arouse, brace, energize, energise, perk upusage: make lively; "let's liven up this room a bit"WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: grimace Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language