Breadcrumb Home > Thesaurus > H Synonyms of haymaker Find synonyms for: Noun 1. haymaker, hay conditioner, farm machine usage: a farm machine that treats hay to cause more rapid and even drying 2. haymaker, knockout punch, KO punch, Sunday punch, punch, clout, poke, lick, biff, slug usage: a hard punch that renders the opponent unable to continue boxing WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of haymaker (Dictionary) TrendingHere are the facts and trivia that people are buzzing about. Hanukkah Origins of the Christmas Holiday Jewish Holidays, 2010-2030 (A.M. 5770-5791) Western Christian Holidays, 2010-2030 Krampus: The Christmas Devil Kwanzaa ✖ Related Content Daily Word Quiz: neologism Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language