資料來源 : Webster's Revised Unabridged Dictionary (1913)

Informidable \In*for"mi*da*ble\, a. [L. informidabilis. See
   {In-} not, and {Formidable}.]
   Not formidable; not to be feared or dreaded. [Obs.] ``Foe not
   informidable.'' --Milton.