WordNet: fixity, immutability, immutableness

the quality of being incapable of mutation; "Darwin challenged the fixity of species"

• hypernym changelessness, unchangeability, unchangeableness, unchangingness

• hyponym unalterability

• hyponym agelessness

fixity

• (suomi) pysyvyys (synonyymi)

immutability

• (englanti) mutability (antonym)

• (englanti) immutable (derivationally related)
• (suomi) muuttumattomuus (synonyymi)

immutableness

• (englanti) mutableness (antonym)

• (englanti) immutable (derivationally related)
• (suomi) muuttumattomuus (synonyymi)