Source : Webster's Revised Unabridged Dictionary (1913)

Inedible \In*ed"i*ble\, a. [LL. inedibilis. See {In-} not, and
   {Edible}.]
   Not edible; not fit for food. -- {In*ed`i*bil"i*ty}, n.

Source : WordNet®

inedible
     adj : not suitable for food [syn: {uneatable}] [ant: {edible}]