a. Obs. rare. [f. SYMMETRY + -OUS.] Symmetrical; corresponding. Hence † Symmetriously adv., symmetrically.
1656. W. Coles, Art of Simpling, 148. A Body so symmetriously composed.
1667. Waterhouse, Narr. Fire in London, 85. Its Franchises being all Emblematical of, and Symmetrious with the Greater Ones of the Nation.