What is the synonym of permanent?

There are many synonyms for "permanent," depending on the context. Here are a few options:

General:

* Enduring

* Lasting

* Everlasting

* Eternal

* Fixed

* Unchanging

* Stable

More specific:

* Abiding (for something that remains constant or unchanged)

* Invariable (for something that cannot be changed)

* Immutable (for something that is unchanging and cannot be altered)

* Indelible (for something that cannot be erased or removed)

* Perpetual (for something that continues forever)

The best synonym for "permanent" will depend on the specific meaning you want to convey.