a. Not having due proportion to something else; not having proportion or symmetry of parts; unsuitable in form, quantity or value; inadequate; unequal; as, a disproportional limb constitutes deformity in the body; the studies of youth should not be disproportional to their understanding. [ 1913 Webster ]

n. The state of being disproportional. Dr. H. More. [ 1913 Webster ]

adv. In a disproportional manner; unsuitably in form, quantity, or value; unequally. [ 1913 Webster ]