/ Thesaurus / S Synonyms of strenuosity Find synonyms for: Noun1. athleticism, strenuosity, energy, vigor, vigour, zipusage: intense energy; "his music is characterized by a happy athleticism"WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: denizen Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language