In legislation. A statute couched in affirmative or mandatory terms; one which directs the performing of an act, or declares exactly what will be done; as an adverse statute is the one which forbids anything from being done, or declares exactly what shall never be done. I'lackslone describes affirmative functions of parliament as those "wherein justice is directed to-be done based on the legislation of the land." 1 Bl. Comm. 142.