Law Dictionary intra vires adverb in·tra vi·res \ ˈin-trə-ˈvī-rēz, -ˈvē-rās \ Trending Now: More Trending: lowlife kakistocracy slimeball salacious oligarch SEE ALL See What's Trending Now See More Trending Words What's Trending Now More Trending Words lowlife 'a person of low moral character' kakistocracy 'government by the worst people' slimeball 'a morally repulsive or odious person' salacious 'arousing or appealing to sexual desire' oligarch 'government in which a small group exercises control' SEE ALL legal Definition of intra vires : within the powers a corporate director acting intra vires — compare ultra vires Origin and Etymology of intra vires New Latin Seen and Heard What made you want to look up intra vires? Please tell us where you read or heard it (including the quote, if possible). show hide