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

Immovableness \Im*mov"a*ble*ness\, n.
   Quality of being immovable.

資料來源 : WordNet®

immovableness
     n : no capable of being moved or rearranged [syn: {immovability}]
         [ant: {movability}, {movability}]