Excusable \Ex*cus"a*ble\a. [L. excusabilis: cf. F. excusable. See Excuse.]

That may be excused, forgiven, justified, or acquitted of blame; pardonable; as, the man is excusable; an excusable action. -- Ex*cus"a*ble*ness, n. -- Ex*cus"a*bly, adv.

The excusableness of my dissatisfaction. --Boyle.

Source: Webster's Revised Unabridged Dictionary (1913)