Found 2 items, similar to Ultra vires.
English → English (WordNet) Definition: ultra vires ultra vires adj : beyond the legal power or authority of a person or official or body etc; “an ultra vires contract” [ant: intra vires ] adv : beyond the scope or in excess of legal power or authority
English → English (gcide) Definition: Ultra vires Ultra vires \Ul`tra vi"res\, [Law Latin, from L. prep. ultra beyond + vires, pl. of. vis strength.] Beyond power; transcending authority; -- a phrase used frequently in relation to acts or enactments by corporations in excess of their chartered or statutory rights. [1913 Webster]