Sterile

1. (not comparable) Unable to reproduce (or procreate).
2. (figuratively) Terse; lacking sentiment or emotional stimulation, as in a manner of speaking.
3. (figuratively) Fruitless, uninspiring, or unproductive.
4. Germless; free from all living or viable microorganisms.
5. Free from dangerous objects, as a zone in an airport that can be only be entered via a security checkpoint.
6. (US, military) Of weapons: foreign-made and untraceable to the United States.

(unable to procreate): barren, infertile

non-sterile, nonsterile

unsterile