Germless; free from all living or viable microorganisms.
Fruitless, uninspiring, or unproductive.
Terse; lacking sentiment or emotional stimulation, as in a manner of speaking.
Unable to reproduce (or procreate).
Of weapons: foreign-made and untraceable to the United States.
Free from dangerous objects, as a zone in an airport that can be only be entered via a security checkpoint.
Free of water.