/ Thesaurus / S Synonyms of synthetic fiber Find synonyms for: Noun1. man-made fiber, synthetic fiber, fiber, fibreusage: fiber created from natural materials or by chemical processesWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: laudable Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language