What does "permanency" mean?

The state or quality of permanence.

What is a synonym for "permanency"?

Common synonyms include: permanence, constancy, durability, duration, endurance, hardening.

noun

noun ·Rare ·Advanced level

Noun

1
The state or quality of permanence. countable, uncountable
"The permanency of the new government is questionable."
2
the property of being able to exist for an indefinite duration wordnet
3
A person or thing permanently in residence. countable
"Family Ghosts are permanencies, you know; but I'll tell you what I'll do."

"The permanency of the new government is questionable."

From Latin permanentia. Compare permanence.