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.
Germless; free from all living or viable microorganisms.
Free from dangerous objects, as a zone in an airport that can be only be entered via a security checkpoint.
Not arranged in a line.
Spread around in a chaotic and disorganized manner.