vastadjective/vaʃtu/highvas·toPortuguesEnglishEspanolFrancaisDefinitionOf great extent; very large or spacious.The Sahara Desert is a vast and arid region.The library has a vast collection of rare books.synextensiveimmensehugeantsmalllimitednarrowCommon collocationsvast territoryvast knowledgevast collectionvast experienceEtymologyDo latim 'vastus'.Related wordsvastidãovastamente