Breadcrumb Home > Thesaurus > T Synonyms of threadfin Find synonyms for: Noun 1. threadfin, percoid fish, percoid, percoidean usage: mullet-like tropical marine fishes having pectoral fins with long threadlike rays WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of threadfin (Dictionary) TrendingHere are the facts and trivia that people are buzzing about. Chinese New Year History, Meaning, and Celebrations Current Events This Week: February 2024 Valentine's Day Valentine's Day History Mardi Gras 30 "Charlie and the Chocolate Factory" Quotes ✖ Related Content Daily Word Quiz: procellous Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language