Disproportional
Pronunciation : Dis`pro*por"tion*al
Part of Speech : a.
Definition : Defn: 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.
Source : Webster's Unabridged Dictionary, 1913