va·por·ware (v??p?r-wâr?)n. New software that has been announced or marketed but has not been produced.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.va?por?ware (?ve? p?r?w??r) n. a product, esp. computer software, that is announced and promoted while it is still in development and that may never come to market. [1980?85] Random House Kernerman Webster’s College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.vaporwareSoftware that has been promoted for a long period but never becomes available for use.Dictionary of Unfamiliar Words by Diagram Group Copyright © 2008 by Diagram Visual Information Limited