Webster 1913 Edition
Not reasonable; irrational; immoderate; exorbitant.–
Webster 1828 Edition
1.Not agreeable to reason.
2.Exceeding the bounds of reason; claiming or insisting on more than is fit; as an unreasonable demand.
3.Immoderate; exorbitant; as an unreasonable love of life or of money.
4.Irrational. [In this sense, see Irrational.]