lithe (l?th)adj. lith·er, lith·est 1. Readily bent; supple: lithe birch branches.2. Marked by effortless grace: a lithe ballet dancer.[Middle English, from Old English l?the, flexible, mild.]lithe?ly adv.lithe?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.lithe (la?ð) adjflexible or supple[Old English (in the sense: gentle; C15: supple); related to Old High German lindi soft, Latin lentus slow] ?lithely adv ?litheness nCollins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014lithe (la?ð, la??) adj. lith?er, lith?est. bending readily; pliant; limber; supple; flexible. [before 900; Middle English lith(e), Old English l?the, c. Old Saxon l?thi, Old High German lindi mild, Latin lentus slow] lithe?ly, adv. lithe?ness, n. Random House Kernerman Webster’s College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.