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adj. brawn·i·er, brawn·i·est
Strong and muscular. See Synonyms at muscular.

brawn′i·ly adv.
brawn′i·ness n.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.brawniness - possessing muscular strength
strength - the property of being physically or mentally strong; "fatigue sapped his strength"
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in classic literature ?
And whatever they may reveal of the divine love in the Son, the soft, curled, hermaphroditical Italian pictures, in which his idea has been most successfully embodied; these pictures, so destitute as they are of all brawniness, hint nothing of any power, but the mere negative, feminine one of submission and endurance, which on all hands it is conceded, form the peculiar practical virtues of his teachings.
FACTUAL Christmas time just wouldn't be the same without a bunch of big, burly men throwing around boulders to show off their brawniness. We are, of course, talking about the strongest man competition.
How many high school football players 20 years from now, and in full brawniness, will be suiting up their wives in pads and helmets for an hour of hard hits on the front lawn?