What is the synonym for sterile?

There are several synonyms for sterile, depending on the context:

For objects or environments:

* Clean

* Disinfected

* Sanitized

* Aseptic

* Germ-free

* Uncontaminated

* Barren (for land)

For people:

* Infertile

* Unproductive

* Impotent (for males)

* Barren (for women)

For ideas or discussions:

* Unproductive

* Fruitless

* Uninspiring

For medical contexts:

* Aseptic

* Bacteriostatic

The best synonym for "sterile" will depend on the specific meaning you are trying to convey.