资料来源 : pyDict

可变更性,可更改性

资料来源 : Webster's Revised Unabridged Dictionary (1913)

Alterability \Al`ter*a*bil"i*ty\, n. [Cf. F.
   alt['e]rabilit['e].]
   The quality of being alterable; alterableness.

资料来源 : WordNet®

alterability
     n : the quality of being alterable [ant: {unalterability}]