conˈspiringly,adv. [f.prec. + -ly2.] In a conspiring manner; by secret plot; in concert. 1645Milton Tetrach. (1851) 234 Either violently without mutuall consent..or conspiringly by plot of lust.1678Cudworth Intell.Syst. i. iii. §37. 164 All things are ordered together conspiringly into one.