Search Result for "immutability": 
Wordnet 3.0

NOUN (1)

1. the quality of being incapable of mutation;
- Example: "Darwin challenged the fixity of species"
[syn: immutability, immutableness, fixity]



The Collaborative International Dictionary of English v.0.48:

Immutability \Im*mu`ta*bil"i*ty\, n. [L. immutabilitas: cf. F.
   immutabilit['e].]
   The state or quality of being immutable; immutableness.
   --Heb. vi. 17.
   [1913 Webster]


WordNet (r) 3.0 (2006):

immutability
    n 1: the quality of being incapable of mutation; "Darwin
         challenged the fixity of species" [syn: immutability,
         immutableness, fixity] [ant: mutability,
         mutableness]