home·less (h?m?l?s)adj. Having no home or haven.n. (used with a pl. verb) People without homes considered as a group. Often used with the.home?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.