incoˈmmensurably,adv. [f. as prec. + -ly2.] In an incommensurable manner or degree; incomparably. 1652W. Hartley Infant-Baptism 9 Unless we affirm that the Death of Christ be incommensurably reparative to our fall in Adam.1871Browning Pr. Hohenst. 1830 The incommensurably Beautiful.