immutableness Synonyms

immutability fixity stability perdurability longevity invariability continued existence continuance fixedness doggedness steadiness viability dependability continuum continuousness ceaselessness carrying-on agelessness unchangeability changelessness unchangeableness distension dilatation broadening being augmentation augmenting assiduity amplification agreement adhesion congruity conservancy conservation development continuity continuing continuation constancy consonance consistency conserving abidance