aim·less (?m?l?s)adj. Lacking direction or purpose: an aimless stroll; aimless slackers.aim?less·ly adv.aim?less·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.aimless (?e?ml?s) adjhaving no goal, purpose, or direction ?aimlessly adv ?aimlessness nCollins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014aim?less (?e?m l?s) adj. purposeless. [1620?30] aim?less?ly, adv. aim?less?ness, n. Random House Kernerman Webster’s College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.