permanent
//ˈpɜːrmənənt//
Adjective
1
lasting or intended to last or remain unchanged indefinitely
The accident caused permanent damage to his eyesight.
2
continuing or designed to continue without change for a very long time
The museum is looking for a permanent home for its collection.
Noun
1
a hairstyle produced by treating the hair with chemicals to form lasting curls or waves
She got a permanent at the salon yesterday.