Inimica vis is a papal encyclical addressed to the Catholic bishops of Italy.

[1] It remarked on the multiple condemnations of Freemasonry over the preceding century and a half and concentrated on the local difficulties of the Italian church.

It is viewed as reproving the Italian bishops for an apathetic response to Freemasonry in Italy[2] and it complained that some members of the Catholic clergy were co-operating with the Masonic and anti-clerical government of the Kingdom of Italy.

[3] It was seen as the start of Papal "bargaining" with the forces symbolised by Continental Freemasonry,[4] although it has also been noted that Freemasonry was denounced as a "vile sect".

[5] On the same date Inimica vis was promulgated, 18 December 1892, Pope Leo XIII wrote Custodi di quella fede, an encyclical epistle addressed to the Italian people, further attacking Freemasonry.