stal·wart (stôl?w?rt)adj.1. Loyal and resolute: a stalwart ally; stalwart support.2. Strong and imposing: a stalwart oak tree.n. One who steadfastly supports an organization or cause: party stalwarts.[Middle English, alteration of stalworth, from Old English st?lwierthe, serviceable, probably alteration of *statholwierthe, steadfast : stathol, foundation; see staddle + weorth, valuable; see wer- in Indo-European roots.]stal?wart·ly adv.stal?wart·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.stalwart (?st??lw?t) adj1. strong and sturdy; robust2. solid, dependable, and courageous: stalwart citizens. 3. resolute and firmna stalwart person, esp a supporter[Old English st?lwirthe serviceable, from st?l, shortened from stathol support + wierthe worth1] ?stalwartly adv ?stalwartness nCollins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014stal?wart (?st?l w?rt) adj. 1. strongly and stoutly built; sturdy and robust. 2. strong and brave; valiant. 3. firm; steadfast. n. 4. a physically stalwart person. 5. a steadfast partisan: party stalwarts. [1325?75; Middle English stalwurthe, Old English st?lwirthe serviceable] stal?wart?ly, adv. stal?wart?ness, n. Random House Kernerman Webster’s College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.