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. Jewish Holidays, 2010-2030 (A.M. 5770-5791) Western Christian Holidays, 2010-2030 12 Steps to a New Year New Year's Resolution to Slim Down? Martin Luther King Speeches Books of the Bible: Old Testament Books in Order ✖ Related Content Daily Word Quiz: catalpa Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language