vaporware Syllabification: (va·por·ware)Pronunciation: /ˈvāpərˌwer/ (Britishvapourware)Definition of vaporware noun Computing, informal software or hardware that has been advertised but is not yet available to buy, either because it is only a concept or because it is still being written or designed. vaporware in other Oxford dictionaries Definition of vaporware in the British & World English dictionary