conspiratory,a.rare.|kənˈspɪrətərɪ| [f. conspirator on L. type *conspīrātōri-us: see -ory.] Pertaining to conspirators or to conspiracy. 1801W. Taylor in Monthly Mag. XII. 98 Can it be said..of conspiratory clubs that they are capricious.1882Contemp.Rev. Oct. 625 Conspiratory circles were formed.