permanency Synonyms

permanence continued existence solidity retention remanence persistence perpetuity perpetuation perdurance perdurability longevity stability stasis invariableness dependability lastingness unalterability agelessness unchangingness changelessness unchangeableness tenure steadiness lasting invariability continuing continuance constancy consistency augmentation attendance assiduity amplification agreement adhesion continuity durability indestructibility inalterability imperishability immutability immortality fixity fixedness firmness endurance duration abidance