/ Thesaurus / T Synonyms of third rater Find synonyms for: Noun1. third-rater, person, individual, someone, somebody, mortal, soulusage: one who is third-rate or distinctly inferiorWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: profiterole Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language