Word Study
immutableness
WORDNET DICTIONARY
Noun immutableness has 1 sense
- immutableness(n = noun.attribute) fixity, immutability - the quality of being incapable of mutation; "Darwin challenged the fixity of species" is a kind of changelessness, unchangeability, unchangeableness, unchangingness
has particulars: unalterability, agelessness
Derived form adjective immutable1
Antonym: mutableness
For further exploring for "immutableness" in Webster Dictionary Online