資料來源 : pyDict

不能反逆的性能,不可改變性

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

Irreversibility \Ir`re*vers`i*bil"i*ty\, n.
   The state or quality of being irreversible; irreversibleness.

資料來源 : WordNet®

irreversibility
     n : the quality of being irreversible (once done it cannot be
         changed) [ant: {reversibility}]