Hypertext Webster Gateway: "unpardonable"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Unpardonable \Un*par"don*a*ble\, a.
Not admitting of pardon or forgiveness; inexcusable.
From WordNet (r) 1.7 (wn)
unpardonable
adj : not admitting of pardon; "unpardonable behavior" [ant: {pardonable}]
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