Hypertext Webster Gateway: "redoutable"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Redoubtable \Re*doubt"a*ble\ (-?*b'l), a. [F. redoutable,
formerly also spelt redoubtable.]
Formidable; dread; terrible to foes; as, a redoubtable hero;
hence, valiant; -- often in contempt or burlesque. [Written
also {redoutable}.]
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