/ Thesaurus / E Synonyms of execution speed Find synonyms for: Noun1. execution speed, speed, swiftness, fastnessusage: (computer science) the speed with which a computational device can execute instructions; measured in MIPSWordNet 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