The Collaborative International Dictionary
Unimpeachableness
Unimpeachable \Un`im*peach"a*ble\, a.
Not impeachable; not to be called in question; exempt from
liability to accusation; free from stain, guilt, or fault;
irreproachable; blameless; as, an unimpeachable reputation;
unimpeachable testimony.
--Burke. --
Un`im*peach"a*ble*ness, n. -- Un`im*peach"a*bly, adv.